Race Condition Affecting firefox-x11 package, versions <0:115.6.0-1.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOXX11-6141221
  • published2 Jan 2024
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6857  (opens in a new tab)
CWE-363  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox-x11 to version 0:115.6.0-1.el9_2 or higher.
This issue was patched in RHSA-2024:0019.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-x11 package and not the firefox-x11 package as distributed by RHEL. See How to fix? for RHEL:9 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