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CVE-2021-43529 (GCVE-0-2021-43529)

Vulnerability from cvelistv5 – Published: 2023-02-16 00:00 – Updated: 2025-03-19 15:00
VLAI
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-19 15:00 UTC
CWE
  • Memory corruption when processing S/MIME messages
  • CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Thunderbird Affected: unspecified , < 91.3.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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