SUSE update for libX11

1) Buffer overflow

EUVDB-ID: #VU104193

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-2025-26597

CWE-ID: CWE-119 - Memory corruption

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 XkbChangeTypesOfKey() function. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package libX11 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP6

SUSE Linux Enterprise Real Time 15: SP6

openSUSE Leap: 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP6

SUSE Linux Enterprise Server 15: SP6

SUSE Linux Enterprise Desktop 15: SP6

libX11-xcb1-64bit-debuginfo: before 1.8.7-150600.3.3.1

libX11-xcb1-64bit: before 1.8.7-150600.3.3.1

libX11-devel-64bit: before 1.8.7-150600.3.3.1

libX11-6-64bit-debuginfo: before 1.8.7-150600.3.3.1

libX11-6-64bit: before 1.8.7-150600.3.3.1

libX11-data: before 1.8.7-150600.3.3.1

libX11-xcb1-32bit-debuginfo: before 1.8.7-150600.3.3.1

libX11-6-32bit: before 1.8.7-150600.3.3.1

libX11-devel-32bit: before 1.8.7-150600.3.3.1

libX11-xcb1-32bit: before 1.8.7-150600.3.3.1

libX11-6-32bit-debuginfo: before 1.8.7-150600.3.3.1

libX11-6-debuginfo: before 1.8.7-150600.3.3.1

libX11-devel: before 1.8.7-150600.3.3.1

libX11-6: before 1.8.7-150600.3.3.1

libX11-debugsource: before 1.8.7-150600.3.3.1

libX11-xcb1-debuginfo: before 1.8.7-150600.3.3.1

libX11-xcb1: before 1.8.7-150600.3.3.1

CPE2.3

• cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libx11-xcb1-64bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-devel-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-64bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-data:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2025/suse-su-20250739-1/

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.