Vulnerabilities > CVE-2023-31130 - Out-of-bounds Write vulnerability in multiple products

Summary

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.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-787 - Out-of-bounds Write

References