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VULNERABILITIES

CVE-2023-31130 Details

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.

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References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 CVERelease Notes
https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v CVEThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html CVEMailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ CVEMailing ListThird Party Advisory

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-787Out-of-bounds Write[email protected]
CWE-124Buffer Underwrite ('Buffer Underflow')[email protected]

Affected Products

ProductVersions
c-ares project c-ares
< 1.19.1

CPE

  • cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
37
38

CPE

  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
10.0
11.0

CPE

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes


QUICK INFO

CVE Dictionary Entry:
CVE-2023-31130
NVD Published Date:
May 25, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-31130 Details - Not Deferred