SUSE update for libX11

1) Out-of-bounds write

EUVDB-ID: #VU77450

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3138

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within src/InitExt.c in libX11. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation

Update the affected package libX11 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP4 - SP5

SUSE Linux Enterprise Server 12 SP4 LTSS: 12-SP4

SUSE Linux Enterprise Server 12 SP4 ESPOS: 12-SP4

SUSE Linux Enterprise Server 12: SP2 - SP5

SUSE Linux Enterprise Server 12 SP2 BCL: 12-SP2

SUSE Linux Enterprise High Performance Computing 12: SP2 - SP5

SUSE OpenStack Cloud Crowbar: 9

SUSE OpenStack Cloud: 9

libX11-devel: before 1.6.2-12.30.1

libX11-data: before 1.6.2-12.30.1

libX11-xcb1-32bit: before 1.6.2-12.30.1

libX11-xcb1: before 1.6.2-12.30.1

libX11-xcb1-debuginfo-32bit: before 1.6.2-12.30.1

libX11-xcb1-debuginfo: before 1.6.2-12.30.1

libX11-6-debuginfo-32bit: before 1.6.2-12.30.1

libX11-debugsource: before 1.6.2-12.30.1

libX11-6-debuginfo: before 1.6.2-12.30.1

libX11-6: before 1.6.2-12.30.1

libX11-6-32bit: before 1.6.2-12.30.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp4_ltss:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp4_espos:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp2_bcl:12-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libx11-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-data:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-xcb1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libx11-6-32bit:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232531-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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