Use After Free Affecting gsettings-desktop-schemas-devel package, versions <0:3.32.0-6.el8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.21% (59th percentile)

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  • Snyk IDSNYK-ALMALINUX8-GSETTINGSDESKTOPSCHEMASDEVEL-5638070
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-21779  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 gsettings-desktop-schemas-devel to version 0:3.32.0-6.el8 or higher.
This issue was patched in ALSA-2021:4381.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gsettings-desktop-schemas-devel package and not the gsettings-desktop-schemas-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.

CVSS Scores

version 3.1