Vulnerability Details CVE-2021-29945
The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 60.6%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1700690
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1700690
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/
Products affected by CVE-2021-29945
-
cpe:2.3:a:mozilla:firefox:60.0
-
cpe:2.3:a:mozilla:firefox_esr:*
-
cpe:2.3:a:mozilla:thunderbird:*