CVE-2023-0494CWE-416

A vulnerability was found in X.Org

High · published March 27, 2023

CVSS v3.1
7.8
EPSS
1%
Percentile
59.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00899 · 59.3th percentile
Weakness
CWE-416 · Use After Free
Published
2023-03-27T00:00Z
EPSS history
Timeline
  • 27 MAR 00:00Z
    A vulnerability was found in X.Org
    cvelistv5