vulnerability
MFSA2021-45 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.2 (CVE-2021-38498)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Oct 5, 2021 | Oct 6, 2021 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Oct 5, 2021
Added
Oct 6, 2021
Modified
Mar 27, 2026
Description
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Solution
mozilla-firefox-esr-upgrade-91_2
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