Time-of-check Time-of-use (TOCTOU) Affecting thunderbird-debuginfo package, versions <0:78.10.0-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRDDEBUGINFO-1699174
  • published27 Sept 2021
  • disclosed24 Jun 2021

Introduced: 24 Jun 2021

CVE-2021-29948  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird-debuginfo to version 0:78.10.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2021-1644.

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.

Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file. This vulnerability affects Thunderbird < 78.10.

CVSS Scores

version 3.1