Buffer Overflow Affecting thunderbird-debuginfo package, versions <0:91.6.0-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRDDEBUGINFO-2993213
  • published26 Aug 2022
  • disclosed16 Feb 2023

Introduced: 26 Aug 2022

CVE-2021-43529  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird-debuginfo to version 0:91.6.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1818.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird-debuginfo package and not the thunderbird-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1