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Ubuntu: USN-4926-1 (CVE-2021-23997): Firefox vulnerabilities

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Ubuntu: USN-4926-1 (CVE-2021-23997): Firefox vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
04/26/2021
Created
04/28/2021
Added
04/27/2021
Modified
03/22/2023

Description

Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

Solution(s)

  • ubuntu-upgrade-firefox

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