MFSA2020-51 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.5 (CVE-2020-26959)
7
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
11/17/2020
11/19/2020
11/18/2020
12/14/2020
Description
During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Solution(s)
- mozilla-firefox-esr-upgrade-78_5
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