vulnerability
Red Hat: CVE-2021-43529: CVE-2021-43529 thunderbird: Memory corruption when processing S/MIME messages (Multiple Advisories)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | Nov 4, 2021 | May 24, 2022 | Jul 9, 2025 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Nov 4, 2021
Added
May 24, 2022
Modified
Jul 9, 2025
Description
Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource

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