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Ubuntu: (Multiple Advisories) (CVE-2021-23960): Firefox vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-23960): Firefox vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
01/27/2021
Created
02/03/2021
Added
02/02/2021
Modified
03/22/2023

Description

Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Solution(s)

  • ubuntu-upgrade-firefox
  • ubuntu-upgrade-thunderbird

References

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