CVE-2021-29984
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-29984
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29984.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-29984
- Downstream
- Related
- Published
- 2021-08-17T20:15:07Z
- Modified
- 2025-08-09T19:01:26Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
- References
-
- https://bugzilla.mozilla.org/show_bug.cgi?id=1720031
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://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/