SUSE update for xorg-x11-server

1) Out-of-bounds write

EUVDB-ID: #VU84372

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-6377

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the XKB button handler when switching logical input devices. A local user can trigger an out-of-bounds write 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-SP5

Basesystem Module: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

SUSE Linux Enterprise Desktop 15: SP5

openSUSE Leap: 15.5

xorg-x11-server-Xvfb: before 21.1.4-150500.7.13.1

xorg-x11-server-source: before 21.1.4-150500.7.13.1

xorg-x11-server-debugsource: before 21.1.4-150500.7.13.1

xorg-x11-server-debuginfo: before 21.1.4-150500.7.13.1

xorg-x11-server: before 21.1.4-150500.7.13.1

xorg-x11-server-extra: before 21.1.4-150500.7.13.1

xorg-x11-server-Xvfb-debuginfo: before 21.1.4-150500.7.13.1

xorg-x11-server-extra-debuginfo: before 21.1.4-150500.7.13.1

xorg-x11-server-sdk: before 21.1.4-150500.7.13.1

CPE2.3

• cpe:2.3:o:suse:development_tools_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:xorg-x11-server-xvfb:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-xvfb-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:xorg-x11-server-sdk:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234925-1/

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.