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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-05-25T21:45:42.645Z

Updated: 2024-08-02T14:45:26.018Z

Reserved: 2023-04-24T21:44:10.416Z

Link: CVE-2023-31130

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-05-25T22:15:09.760

Modified: 2024-06-10T17:16:12.350

Link: CVE-2023-31130

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-05-22T00:00:00Z

Links: CVE-2023-31130 - Bugzilla