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MFSA2021-13 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.9.1 (CVE-2021-29949)

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MFSA2021-13 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.9.1 (CVE-2021-29949)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/08/2021
Created
04/22/2021
Added
04/21/2021
Modified
07/02/2021

Description

When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library. This vulnerability affects Thunderbird < 78.9.1.

Solution(s)

  • mozilla-thunderbird-upgrade-78_9_1

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