CVE-2023-31130 | BDVDB-2026-203232 Detail
c-aresc-ares
Description#
c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-124 Buffer Underwrite ('Buffer Underflow')
References#
- https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
- https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
- 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://www.debian.org/security/2023/dsa-5419
- https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
- https://security.gentoo.org/glsa/202310-09
- https://security.netapp.com/advisory/ntap-20240605-0005/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.