🛡️ CVE-2023-0494
🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-416 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-416
Public Exploit ✅ No
Source NVD
Published 2023-03-27
Updated 2026-06-08
Modified 2025-02-24

Affected Packages

Software From version Fixed in
enterprise-linux
enterprise-linux-aus
enterprise-linux-desktop
enterprise-linux-eus
enterprise-linux-for-ibm-z-systems
enterprise-linux-for-ibm-z-systems-eus
enterprise-linux-for-power-big-endian
enterprise-linux-for-power-little-endian
enterprise-linux-for-power-little-endian-eus
enterprise-linux-for-scientific-computing
enterprise-linux-server
enterprise-linux-server-aus
enterprise-linux-server-for-power-little-endian-update-services-for-sap-solutions
enterprise-linux-server-tus
enterprise-linux-server-update-services-for-sap-solutions
enterprise-linux-server-workstation
fedora
x-server 21.1.7

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