Use After Free Affecting tigervnc-icons package, versions <0:1.8.0-24.el7_9


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (57th 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-CENTOS7-TIGERVNCICONS-3314255
  • published7 Feb 2023
  • disclosed7 Feb 2023

Introduced: 7 Feb 2023

CVE-2023-0494  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:7 tigervnc-icons to version 0:1.8.0-24.el7_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-icons package and not the tigervnc-icons package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

CVSS Scores

version 3.1