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Ubuntu: (Multiple Advisories) (CVE-2020-26973): Thunderbird vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-26973): Thunderbird vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
12/15/2020
Created
12/17/2020
Added
12/16/2020
Modified
01/21/2021

Description

Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Solution(s)

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

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