SUSE update for xorg-x11-server

1) Stack-based buffer overflow

EUVDB-ID: #VU70433

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46340

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error  within the swap handler for the XTestFakeInput request of the XTest extension if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Development Tools Module: 15-SP4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

xorg-x11-server-extra-debuginfo: before 1.20.3-150400.38.19.1

xorg-x11-server-sdk: before 1.20.3-150400.38.19.1

xorg-x11-server: before 1.20.3-150400.38.19.1

xorg-x11-server-extra: before 1.20.3-150400.38.19.1

xorg-x11-server-debugsource: before 1.20.3-150400.38.19.1

xorg-x11-server-source: before 1.20.3-150400.38.19.1

xorg-x11-server-debuginfo: before 1.20.3-150400.38.19.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230731-1/

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.