Race Condition Affecting MozillaFirefox-devel package, versions <115.6.0-150200.152.120.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-SLES155-MOZILLAFIREFOXDEVEL-6135457
  • published21 Dec 2023
  • disclosed20 Dec 2023

Introduced: 20 Dec 2023

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

How to fix?

Upgrade SLES:15.5 MozillaFirefox-devel to version 115.6.0-150200.152.120.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream MozillaFirefox-devel package and not the MozillaFirefox-devel package as distributed by SLES. See How to fix? for SLES:15.5 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 Base Scores

version 3.1