CVE-2021-29986
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.3%
exploitation probability
1.3%top 32% of all CVEs
observed exploitation
nono source reports it
A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1696138https://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-34/https://www.mozilla.org/security/advisories/mfsa2021-35/https://www.mozilla.org/security/advisories/mfsa2021-36/