CVE-2021-43529

CRITICAL Year: 2021
CVSS v3 Score
9.8
Critical
Weakness Type
CWE-787
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Vulnerability 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.

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