NetSight
high8.1

CVE-2021-29986

A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash.

Impact

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.

Affected products

VendorProductAffected versions
MozillaFirefox
before 91.0
MozillaFirefox Esr
before 78.13.0
MozillaThunderbird
before 78.13.0

Weakness classification

References