SUSE update for xorg-x11-server

1) Use-after-free

EUVDB-ID: #VU71991

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0494

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within DeepCopyPointerClasses. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package xorg-x11-server to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server: 15-SP2-LTSS - 15-SP4

SUSE Linux Enterprise Realtime Extension: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-SP2-LTSS - 15-SP3-LTSS

SUSE Enterprise Storage: 7.1

SUSE Linux Enterprise Workstation Extension: 15-SP4

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

xorg-x11-server-sdk: before 1.20.3-150200.22.5.66.1

xorg-x11-server-extra-debuginfo: before 1.20.3-150200.22.5.66.1

xorg-x11-server-extra: before 1.20.3-150200.22.5.66.1

xorg-x11-server-debugsource: before 1.20.3-150200.22.5.66.1

xorg-x11-server-debuginfo: before 1.20.3-150200.22.5.66.1

xorg-x11-server: before 1.20.3-150200.22.5.66.1

xorg-x11-server-wayland-debuginfo: before 1.20.3-150200.22.5.66.1

xorg-x11-server-wayland: before 1.20.3-150200.22.5.66.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230285-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.