Improper Restriction of Rendered UI Layers or Frames Affecting firefox-x11 package, versions <0:115.5.0-1.el9_3.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-ALMALINUX9-FIREFOXX11-6115474
  • published11 Dec 2023
  • disclosed27 Nov 2023

Introduced: 27 Nov 2023

CVE-2023-6206  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 firefox-x11 to version 0:115.5.0-1.el9_3.alma.1 or higher.
This issue was patched in ALSA-2023:7507.

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 AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

The black fade animation when exiting fullscreen is roughly the length of 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS Scores

version 3.1