Rapid7

vulnerability

Rocky Linux: CVE-2023-0494: tigervnc (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Mar 27, 2023
Added
Mar 12, 2024
Modified
Mar 31, 2026

Description

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.

Solutions

rocky-upgrade-tigervncrocky-upgrade-tigervnc-debuginforocky-upgrade-tigervnc-debugsourcerocky-upgrade-tigervnc-serverrocky-upgrade-tigervnc-server-debuginforocky-upgrade-tigervnc-server-minimalrocky-upgrade-tigervnc-server-minimal-debuginforocky-upgrade-tigervnc-server-modulerocky-upgrade-tigervnc-server-module-debuginfo
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.