CVE-2023-0494

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.

Related CPE's

ax.orgx_server********

ofedoraprojectfedora36*******

ofedoraprojectfedora37*******

oredhatenterprise_linux_desktop7.0*******

oredhatenterprise_linux_for_scientific_computing7.0*******

oredhatenterprise_linux_server7.0*******

oredhatenterprise_linux_for_power_little_endian7.0*******

oredhatenterprise_linux_for_power_big_endian7.0*******

oredhatenterprise_linux_for_ibm_z_systems7.0*******

oredhatenterprise_linux8.0*******

References

https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec

Patch

https://bugzilla.redhat.com/show_bug.cgi?id=2165995

Issue TrackingThird Party Advisory

https://lists.x.org/archives/xorg-announce/2023-February/003320.html

Mailing ListVendor Advisory

CvssV3 impact

Could not find any metrics

CvssV2 impact

Could not find any metrics
Created by Yello
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