Out-of-bounds Read Affecting firefox-x11 package, versions <0:115.5.0-1.el9_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOXX11-6095139
  • published30 Nov 2023
  • disclosed21 Nov 2023

Introduced: 21 Nov 2023

CVE-2023-6204  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox-x11 to version 0:115.5.0-1.el9_2 or higher.
This issue was patched in RHSA-2023:7577.

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.

On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS Scores

version 3.1