Use After Free Affecting webkit2gtk3-devel-debuginfo package, versions <0:2.32.3-2.el8


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.21% (59th percentile)

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  • Snyk IDSNYK-ROCKY8-WEBKIT2GTK3DEVELDEBUGINFO-3283109
  • published5 Jan 2023
  • disclosed8 Jul 2021

Introduced: 8 Jul 2021

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

How to fix?

Upgrade Rocky-Linux:8 webkit2gtk3-devel-debuginfo to version 0:2.32.3-2.el8 or higher.
This issue was patched in RLSA-2021:4381.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-devel-debuginfo package and not the webkit2gtk3-devel-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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