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


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.36% (73rd percentile)

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  • Snyk IDSNYK-RHEL8-WEBKIT2GTK3DEVEL-4162873
  • published1 Sept 2021
  • disclosed28 Jul 2021

Introduced: 28 Jul 2021

CVE-2021-21775  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 webkit2gtk3-devel to version 0:2.32.3-2.el8 or higher.
This issue was patched in RHSA-2021:4381.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-devel package and not the webkit2gtk3-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A use-after-free vulnerability exists in the way certain events are processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. In order to trigger the vulnerability, a victim must be tricked into visiting a malicious webpage.

CVSS Scores

version 3.1