Race Condition Affecting thunderbird package, versions <1:115.6.0+build2-0ubuntu0.20.04.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.25% (65th percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-6134429
  • published21 Dec 2023
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6857  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 thunderbird to version 1:115.6.0+build2-0ubuntu0.20.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

When resolving a symlink, a race may occur where the buffer passed to readlink may actually be smaller than necessary. This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVSS Scores

version 3.1