All vulnerabilities

Servers and applications

CVE-2023-31130

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…

Severity
Medium 6.4
Published
25 May 2023
Last changed
17 Jun 2026
Added to UpHeron
22 Oct 2026
Fixed in
1.19.1
Sources
NVD

Affected software

SoftwareAffected versions
c-aresServers and applications · cpe:a:c-ares_project:c-ares
  • Every version before 1.19.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-31130
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-31130