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vulnerability

Debian: CVE-2021-29976: firefox-esr, thunderbird -- security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Jul 16, 2021
Added
Jul 16, 2021
Modified
Mar 30, 2026

Description

Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.

Solutions

debian-upgrade-firefox-esrdebian-upgrade-thunderbird
Title
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