CVE-2024-25629

Date: February 23, 2024

c-ares is a C library for asynchronous DNS requests. "ares__read_line()" is used to parse local configuration files such as "/etc/resolv.conf", "/etc/nsswitch.conf", the "HOSTALIASES" file, and if using a c-ares version prior to 1.27.0, the "/etc/hosts" file. If any of these configuration files has an embedded "NULL" character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.

Language: C