Use After Free Affecting xorg-x11-server-extra package, versions <1.20.3-150200.22.5.72.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-SLES152-XORGX11SERVEREXTRA-5296350
  • published30 Mar 2023
  • disclosed29 Mar 2023

Introduced: 29 Mar 2023

CVE-2023-1393  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 xorg-x11-server-extra to version 1.20.3-150200.22.5.72.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-extra package and not the xorg-x11-server-extra package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.

References

CVSS Scores

version 3.1