Use After Free Affecting webkit2gtk3 package, versions <0:2.30.4-3.el8_4


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.72% (82nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL8-WEBKIT2GTK3-4123936
  • published22 Sept 2021
  • disclosed20 Sept 2021

Introduced: 20 Sep 2021

CVE-2021-30858  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 webkit2gtk3 to version 0:2.30.4-3.el8_4 or higher.
This issue was patched in RHSA-2021:4097.

NVD Description

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

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CVSS Scores

version 3.1