Improper Restriction of Rendered UI Layers or Frames 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
0.06% (26th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOXX11-6141230
  • published2 Jan 2024
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6867  (opens in a new tab)
CWE-1021  (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.

The timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.

CVSS Scores

version 3.1