Vulnerability Details CVE-2023-32067
c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.7%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
- https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc
- https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
- https://security.gentoo.org/glsa/202310-09
- https://security.netapp.com/advisory/ntap-20240605-0004/
- https://www.debian.org/security/2023/dsa-5419
- https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
- https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc
- https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
- https://security.gentoo.org/glsa/202310-09
- https://security.netapp.com/advisory/ntap-20240605-0004/
- https://www.debian.org/security/2023/dsa-5419
Products affected by CVE-2023-32067
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cpe:2.3:a:c-ares_project:c-ares:-
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cpe:2.3:a:c-ares_project:c-ares:1.0.0
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cpe:2.3:a:c-ares_project:c-ares:1.1.0
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cpe:2.3:a:c-ares_project:c-ares:1.10.0
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cpe:2.3:a:c-ares_project:c-ares:1.11.0
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cpe:2.3:a:c-ares_project:c-ares:1.12.0
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cpe:2.3:a:c-ares_project:c-ares:1.13.0
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cpe:2.3:a:c-ares_project:c-ares:1.14.0
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cpe:2.3:a:c-ares_project:c-ares:1.15.0
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cpe:2.3:a:c-ares_project:c-ares:1.16.0
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cpe:2.3:a:c-ares_project:c-ares:1.16.1
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cpe:2.3:a:c-ares_project:c-ares:1.17.0
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cpe:2.3:a:c-ares_project:c-ares:1.17.1
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cpe:2.3:a:c-ares_project:c-ares:1.17.2
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cpe:2.3:a:c-ares_project:c-ares:1.18.0
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cpe:2.3:a:c-ares_project:c-ares:1.18.1
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cpe:2.3:a:c-ares_project:c-ares:1.19.0
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cpe:2.3:a:c-ares_project:c-ares:1.2.0
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cpe:2.3:a:c-ares_project:c-ares:1.2.1
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cpe:2.3:a:c-ares_project:c-ares:1.3.0
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cpe:2.3:a:c-ares_project:c-ares:1.3.1
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cpe:2.3:a:c-ares_project:c-ares:1.3.2
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cpe:2.3:a:c-ares_project:c-ares:1.4.0
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cpe:2.3:a:c-ares_project:c-ares:1.5.0
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cpe:2.3:a:c-ares_project:c-ares:1.5.1
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cpe:2.3:a:c-ares_project:c-ares:1.5.2
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cpe:2.3:a:c-ares_project:c-ares:1.5.3
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cpe:2.3:a:c-ares_project:c-ares:1.6.0
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cpe:2.3:a:c-ares_project:c-ares:1.7.0
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cpe:2.3:a:c-ares_project:c-ares:1.7.1
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cpe:2.3:a:c-ares_project:c-ares:1.7.2
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cpe:2.3:a:c-ares_project:c-ares:1.7.3
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cpe:2.3:a:c-ares_project:c-ares:1.7.4
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cpe:2.3:a:c-ares_project:c-ares:1.7.5
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cpe:2.3:a:c-ares_project:c-ares:1.8.0
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cpe:2.3:a:c-ares_project:c-ares:1.9.0
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cpe:2.3:a:c-ares_project:c-ares:1.9.1
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:fedoraproject:fedora:37
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cpe:2.3:o:fedoraproject:fedora:38