AutoTools does not set CARES_RANDOM_FILE during cross compilation
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.7epss 0.9%
exploitation probability
0.9%top 43% of all CVEs
observed exploitation
nono source reports it
c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
c-ares · c-aresReferences
https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1https://github.com/c-ares/c-ares/security/advisories/GHSA-54xr-f67r-4pc4https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/https://security.gentoo.org/glsa/202310-09