{ "document": { "aggregate_severity": { "text": "Low" }, "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/oraclelinux7els/vex/2023/cve-2023-31124-els_os-oraclelinux7els.json" } ], "tracking": { "current_release_date": "2026-04-20T08:48:55Z", "generator": { "date": "2026-04-20T08:48:55Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-31124-ELS_OS-ORACLELINUX7ELS", "initial_release_date": "2023-05-25T22:15:00Z", "revision_history": [ { "date": "2023-05-25T22:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-20T08:48:55Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2023-31124" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Oracle Linux 7", "product": { "name": "Oracle Linux 7", "product_id": "Oracle-Linux-7", "product_identification_helper": { "cpe": "cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Oracle Linux" }, { "branches": [ { "category": "product_version", "name": "c-ares-0:1.10.0-3.el7_9.1.x86_64", "product": { "name": "c-ares-0:1.10.0-3.el7_9.1.x86_64", "product_id": "c-ares-0:1.10.0-3.el7_9.1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/oracle/c-ares@1.10.0-3.el7_9.1?arch=x86_64" } } }, { "category": "product_version", "name": "c-ares-devel-0:1.10.0-3.el7_9.1.x86_64", "product": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.x86_64", "product_id": "c-ares-devel-0:1.10.0-3.el7_9.1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/oracle/c-ares-devel@1.10.0-3.el7_9.1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "c-ares-0:1.10.0-3.el7_9.1.i686", "product": { "name": "c-ares-0:1.10.0-3.el7_9.1.i686", "product_id": "c-ares-0:1.10.0-3.el7_9.1.i686", "product_identification_helper": { "purl": "pkg:rpm/oracle/c-ares@1.10.0-3.el7_9.1?arch=i686" } } }, { "category": "product_version", "name": "c-ares-devel-0:1.10.0-3.el7_9.1.i686", "product": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.i686", "product_id": "c-ares-devel-0:1.10.0-3.el7_9.1.i686", "product_identification_helper": { "purl": "pkg:rpm/oracle/c-ares-devel@1.10.0-3.el7_9.1?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "Oracle Corporation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product": { "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product_id": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/c-ares@1.10.0-3.el7_9.1.tuxcare.els2?arch=x86_64" } } }, { "category": "product_version", "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product_id": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/c-ares-devel@1.10.0-3.el7_9.1.tuxcare.els2?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product": { "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product_id": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/c-ares@1.10.0-3.el7_9.1.tuxcare.els2?arch=i686" } } }, { "category": "product_version", "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product_id": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/c-ares-devel@1.10.0-3.el7_9.1.tuxcare.els2?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64" }, "product_reference": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-0:1.10.0-3.el7_9.1.x86_64 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.x86_64" }, "product_reference": "c-ares-0:1.10.0-3.el7_9.1.x86_64", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686" }, "product_reference": "c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-0:1.10.0-3.el7_9.1.i686 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.i686" }, "product_reference": "c-ares-0:1.10.0-3.el7_9.1.i686", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686" }, "product_reference": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.i686 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.i686" }, "product_reference": "c-ares-devel-0:1.10.0-3.el7_9.1.i686", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64" }, "product_reference": "c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "relates_to_product_reference": "Oracle-Linux-7" }, { "category": "default_component_of", "full_product_name": { "name": "c-ares-devel-0:1.10.0-3.el7_9.1.x86_64 as a component of Oracle Linux 7", "product_id": "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.x86_64" }, "product_reference": "c-ares-devel-0:1.10.0-3.el7_9.1.x86_64", "relates_to_product_reference": "Oracle-Linux-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-31124", "cwe": { "id": "CWE-330", "name": "Use of Insufficiently Random Values" }, "notes": [ { "category": "description", "text": "c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.", "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": { "known_affected": [ "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-31124" }, { "category": "external", "summary": "https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1", "url": "https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1" }, { "category": "external", "summary": "https://github.com/c-ares/c-ares/security/advisories/GHSA-54xr-f67r-4pc4", "url": "https://github.com/c-ares/c-ares/security/advisories/GHSA-54xr-f67r-4pc4" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202310-09", "url": "https://security.gentoo.org/glsa/202310-09" } ], "release_date": "2023-05-25T22:15:00Z", "remediations": [ { "category": "no_fix_planned", "details": "This issue only arises when c-ares is cross-compiled with autotools and the CARES_RANDOM_FILE check is skipped, forcing a non‑CSPRNG rand() fallback; native distribution builds used on servers don’t take this path and have included the 1.19.1 fix since mid‑2023. The impact is limited to weaker randomness (integrity only) with no confidentiality or availability effect, and exploitation requires a specifically misbuilt library to be present in production. Given these constraints, risk to enterprise Linux VMs/servers is negligible and the CVE can be safely deprioritized.", "product_ids": [ "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1" }, "products": [ "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-0:1.10.0-3.el7_9.1.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.i686", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.tuxcare.els2.x86_64", "Oracle-Linux-7:c-ares-devel-0:1.10.0-3.el7_9.1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Low" } ] } ] }