Vulnerability Monitor

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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.

Published

2023-05-25T23:15:09.380

Last Modified

2024-11-21T08:02:38.797

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-400
Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	c-ares_project	c-ares	< 1.19.1	Yes
Operating System	fedoraproject	fedora	37	Yes
Operating System	fedoraproject	fedora	38	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 Release Notes ([email protected])
https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html Mailing List ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202310-09 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20240605-0004/ ([email protected])
https://www.debian.org/security/2023/dsa-5419 Third Party Advisory ([email protected])
https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202310-09 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20240605-0004/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2023/dsa-5419 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)