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MFSA2021-53 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.4.0 (CVE-2021-43541)

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MFSA2021-53 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.4.0 (CVE-2021-43541)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
12/07/2021
Created
12/09/2021
Added
12/08/2021
Modified
01/05/2022

Description

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Solution(s)

  • mozilla-firefox-esr-upgrade-91_4

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