{ "document": { "aggregate_severity": { "text": "Critical" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "* SECURITY UPDATE: Integer overflow leading to out-of-bounds write when\n SSH_MSG_CHANNEL_REQUEST packets with exit signal messages are parsed.\n - debian/patches/CVE-2019-3857.patch: check namelen + 1 does not\n overflow before allocation in exit-signal handling.\n - CVE-2019-3857\n * SECURITY UPDATE: Integer overflow in bounds check in SSH_MSG_DISCONNECT\n packet parsing enabling out-of-bounds read.\n - debian/patches/CVE-2019-17498.patch: harden bounds checking in\n SSH_MSG_DISCONNECT, SSH_MSG_DEBUG, and SSH_MSG_GLOBAL_REQUEST\n handlers to prevent unsigned integer underflow and overflow.\n - CVE-2019-17498", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu16.04els/advisories/2026/clsa-2026_1776855642.json" } ], "tracking": { "current_release_date": "2026-04-22T11:01:38Z", "generator": { "date": "2026-04-22T11:01:38Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1776855642", "initial_release_date": "2026-04-22T11:01:38Z", "revision_history": [ { "date": "2026-04-22T11:01:38Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2019-17498, CVE-2019-3857" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 16.04", "product": { "name": "Ubuntu 16.04", "product_id": "Ubuntu-16", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product": { "name": "libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product_id": "libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libssh2-1-dev@1.5.0-2ubuntu0.1%2Btuxcare.els3?arch=amd64" } } }, { "category": "product_version", "name": "libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product": { "name": "libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product_id": "libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "product_identification_helper": { "purl": "pkg:deb/cloudlinux/libssh2-1@1.5.0-2ubuntu0.1%2Btuxcare.els3?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" }, "product_reference": "libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" }, "product_reference": "libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2019-3859", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3859" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html" }, { "category": "external", "summary": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html", "url": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2019/03/18/3", "url": "http://www.openwall.com/lists/oss-security/2019/03/18/3" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/107485", "url": "http://www.securityfocus.com/bid/107485" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html", "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html", "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Mar/25", "url": "https://seclists.org/bugtraq/2019/Mar/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767", "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3859.html", "url": "https://www.libssh2.org/CVE-2019-3859.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-21T16:01:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] }, { "cve": "CVE-2019-3857", "cwe": { "id": "CWE-190", "name": "Integer Overflow or Wraparound" }, "notes": [ { "category": "description", "text": "An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3857" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:0679", "url": "https://access.redhat.com/errata/RHSA-2019:0679" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1175", "url": "https://access.redhat.com/errata/RHSA-2019:1175" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1652", "url": "https://access.redhat.com/errata/RHSA-2019:1652" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1791", "url": "https://access.redhat.com/errata/RHSA-2019:1791" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1943", "url": "https://access.redhat.com/errata/RHSA-2019:1943" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:2399", "url": "https://access.redhat.com/errata/RHSA-2019:2399" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3857", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3857" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3857.html", "url": "https://www.libssh2.org/CVE-2019-3857.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-25T19:29:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2019-3862", "cwe": { "id": "CWE-130", "name": "Improper Handling of Length Parameter Inconsistency" }, "notes": [ { "category": "description", "text": "An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3862" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html", "url": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2019/03/18/3", "url": "http://www.openwall.com/lists/oss-security/2019/03/18/3" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/107485", "url": "http://www.securityfocus.com/bid/107485" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1884", "url": "https://access.redhat.com/errata/RHSA-2019:1884" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3862", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3862" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Mar/25", "url": "https://seclists.org/bugtraq/2019/Mar/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767", "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3862.html", "url": "https://www.libssh2.org/CVE-2019-3862.html" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujan2020.html", "url": "https://www.oracle.com/security-alerts/cpujan2020.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-21T16:01:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] }, { "cve": "CVE-2019-17498", "cwe": { "id": "CWE-190", "name": "Integer Overflow or Wraparound" }, "notes": [ { "category": "description", "text": "In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-17498" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html" }, { "category": "external", "summary": "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html", "url": "http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html" }, { "category": "external", "summary": "https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/", "url": "https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/" }, { "category": "external", "summary": "https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498", "url": "https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498" }, { "category": "external", "summary": "https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480", "url": "https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480" }, { "category": "external", "summary": "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c", "url": "https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html", "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html", "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html", "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20220909-0004/", "url": "https://security.netapp.com/advisory/ntap-20220909-0004/" } ], "release_date": "2019-10-21T22:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2019-3860", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3860" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00072.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00072.html" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3860", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3860" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/07/msg00028.html", "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00028.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3860.html", "url": "https://www.libssh2.org/CVE-2019-3860.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-25T19:29:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] }, { "cve": "CVE-2019-3861", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3861" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:2136", "url": "https://access.redhat.com/errata/RHSA-2019:2136" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3861.html", "url": "https://www.libssh2.org/CVE-2019-3861.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-25T19:29:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] }, { "cve": "CVE-2019-3858", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2019-3858" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html" }, { "category": "external", "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html" }, { "category": "external", "summary": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html", "url": "http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2019/03/18/3", "url": "http://www.openwall.com/lists/oss-security/2019/03/18/3" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/107485", "url": "http://www.securityfocus.com/bid/107485" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:2136", "url": "https://access.redhat.com/errata/RHSA-2019:2136" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html", "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Apr/25", "url": "https://seclists.org/bugtraq/2019/Apr/25" }, { "category": "external", "summary": "https://seclists.org/bugtraq/2019/Mar/25", "url": "https://seclists.org/bugtraq/2019/Mar/25" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20190327-0005/", "url": "https://security.netapp.com/advisory/ntap-20190327-0005/" }, { "category": "external", "summary": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767", "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767" }, { "category": "external", "summary": "https://www.debian.org/security/2019/dsa-4431", "url": "https://www.debian.org/security/2019/dsa-4431" }, { "category": "external", "summary": "https://www.libssh2.org/CVE-2019-3858.html", "url": "https://www.libssh2.org/CVE-2019-3858.html" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" } ], "release_date": "2019-03-21T21:29:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-04-22T11:00:45.169047Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642", "product_ids": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1776855642" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:libssh2-1-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64", "Ubuntu-16:libssh2-1-dev-0:1.5.0-2ubuntu0.1+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] } ] }