Use After Free Affecting tigervnc-server package, versions <0:1.13.1-8.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.38% (73rd percentile)

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  • Snyk IDSNYK-RHEL8-TIGERVNCSERVER-6043629
  • published26 Oct 2023
  • disclosed25 Oct 2023

Introduced: 25 Oct 2023

CVE-2023-5380  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 tigervnc-server to version 0:1.13.1-8.el8 or higher.
This issue was patched in RHSA-2024:3067.

NVD Description

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

A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.

CVSS Scores

version 3.1