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Debian: CVE-2021-4140: firefox-esr, thunderbird -- security update

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Debian: CVE-2021-4140: firefox-esr, thunderbird -- security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/17/2022
Created
01/18/2022
Added
01/17/2022
Modified
01/05/2023

Description

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Solution(s)

  • debian-upgrade-firefox-esr
  • debian-upgrade-thunderbird

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