CVE-2021-38496

EPSS 1.6%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

03 Nov 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1725335 https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-43/https://www.mozilla.org/security/advisories/mfsa2021-44/https://www.mozilla.org/security/advisories/mfsa2021-45/https://www.mozilla.org/security/advisories/mfsa2021-46/https://www.mozilla.org/security/advisories/mfsa2021-47/