{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "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" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu16.04els/vex/2018/cve-2018-1083-els_os-ubuntu16_04els.json" } ], "tracking": { "current_release_date": "2026-04-24T11:49:54Z", "generator": { "date": "2026-04-24T11:49:54Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2018-1083-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2018-03-28T13:29:00Z", "revision_history": [ { "date": "2018-03-28T13:29:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-20T15:27:18Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-04-24T11:49:54Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2018-1083" }, "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" }, { "branches": [ { "category": "product_version", "name": "zsh-common-0:5.1.1-1ubuntu2.3.all", "product": { "name": "zsh-common-0:5.1.1-1ubuntu2.3.all", "product_id": "zsh-common-0:5.1.1-1ubuntu2.3.all", "product_identification_helper": { "purl": "pkg:deb/ubuntu/zsh-common@5.1.1-1ubuntu2.3?arch=all" } } } ], "category": "architecture", "name": "all" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all", "product": { "name": "zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all", "product_id": "zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/zsh-common@5.1.1-1ubuntu2.3%2Btuxcare.els1?arch=all" } } } ], "category": "architecture", "name": "all" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all" }, "product_reference": "zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all", "relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "zsh-common-0:5.1.1-1ubuntu2.3.all as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3.all" }, "product_reference": "zsh-common-0:5.1.1-1ubuntu2.3.all", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2018-1083", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "notes": [ { "category": "description", "text": "Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.", "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:zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all" ], "known_affected": [ "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2018-1083" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/103572", "url": "http://www.securityfocus.com/bid/103572" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:1932", "url": "https://access.redhat.com/errata/RHSA-2018:1932" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:3073", "url": "https://access.redhat.com/errata/RHSA-2018:3073" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=1557382", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1557382" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2018/03/msg00038.html", "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00038.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html", "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/201805-10", "url": "https://security.gentoo.org/glsa/201805-10" }, { "category": "external", "summary": "https://sourceforge.net/p/zsh/code/ci/259ac472eac291c8c103c7a0d8a4eaf3c2942ed7", "url": "https://sourceforge.net/p/zsh/code/ci/259ac472eac291c8c103c7a0d8a4eaf3c2942ed7" }, { "category": "external", "summary": "https://usn.ubuntu.com/3608-1/", "url": "https://usn.ubuntu.com/3608-1/" } ], "release_date": "2018-03-28T13:29:00Z", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3.all" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" }, "products": [ "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3+tuxcare.els1.all", "Ubuntu-16:zsh-common-0:5.1.1-1ubuntu2.3.all" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }