Security update for libX11 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:1766-1 Final 1 1 2021-05-26T10:37:18Z current 2021-05-26T10:37:18Z 2021-05-26T10:37:18Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libX11 This update for libX11 fixes the following issues: - CVE-2021-31535: Fixed missing request length checks in libX11 (bsc#1182506). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES12-SP5-Azure-BYOS-2021-1766,Image SLES12-SP5-Azure-Basic-On-Demand-2021-1766,Image SLES12-SP5-Azure-HPC-BYOS-2021-1766,Image SLES12-SP5-Azure-HPC-On-Demand-2021-1766,Image SLES12-SP5-Azure-SAP-BYOS-2021-1766,Image SLES12-SP5-Azure-SAP-On-Demand-2021-1766,Image SLES12-SP5-Azure-Standard-On-Demand-2021-1766,Image SLES12-SP5-EC2-BYOS-2021-1766,Image SLES12-SP5-EC2-ECS-On-Demand-2021-1766,Image SLES12-SP5-EC2-On-Demand-2021-1766,Image SLES12-SP5-EC2-SAP-BYOS-2021-1766,Image SLES12-SP5-EC2-SAP-On-Demand-2021-1766,Image SLES12-SP5-GCE-BYOS-2021-1766,Image SLES12-SP5-GCE-On-Demand-2021-1766,Image SLES12-SP5-GCE-SAP-BYOS-2021-1766,Image SLES12-SP5-GCE-SAP-On-Demand-2021-1766,Image SLES12-SP5-OCI-BYOS-BYOS-2021-1766,Image SLES12-SP5-OCI-BYOS-SAP-BYOS-2021-1766,Image SLES12-SP5-SAP-Azure-LI-BYOS-Production-2021-1766,Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production-2021-1766,SUSE-2021-1766,SUSE-SLE-SDK-12-SP5-2021-1766,SUSE-SLE-SERVER-12-SP5-2021-1766 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-20211766-1/ Link for SUSE-SU-2021:1766-1 https://lists.suse.com/pipermail/sle-security-updates/2021-May/008842.html E-Mail link for SUSE-SU-2021:1766-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1182506 SUSE Bug 1182506 https://www.suse.com/security/cve/CVE-2021-31535/ SUSE CVE CVE-2021-31535 page Image SLES12-SP5-Azure-BYOS Image SLES12-SP5-Azure-Basic-On-Demand Image SLES12-SP5-Azure-HPC-BYOS Image SLES12-SP5-Azure-HPC-On-Demand Image SLES12-SP5-Azure-SAP-BYOS Image SLES12-SP5-Azure-SAP-On-Demand Image SLES12-SP5-Azure-Standard-On-Demand Image SLES12-SP5-EC2-BYOS Image SLES12-SP5-EC2-ECS-On-Demand Image SLES12-SP5-EC2-On-Demand Image SLES12-SP5-EC2-SAP-BYOS Image SLES12-SP5-EC2-SAP-On-Demand Image SLES12-SP5-GCE-BYOS Image SLES12-SP5-GCE-On-Demand Image SLES12-SP5-GCE-SAP-BYOS Image SLES12-SP5-GCE-SAP-On-Demand Image SLES12-SP5-OCI-BYOS-BYOS Image SLES12-SP5-OCI-BYOS-SAP-BYOS Image SLES12-SP5-SAP-Azure-LI-BYOS-Production Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5 libX11-6-1.6.2-12.18.1 libX11-data-1.6.2-12.18.1 libX11-xcb1-1.6.2-12.18.1 libX11-6-32bit-1.6.2-12.18.1 libX11-6-64bit-1.6.2-12.18.1 libX11-devel-1.6.2-12.18.1 libX11-devel-32bit-1.6.2-12.18.1 libX11-devel-64bit-1.6.2-12.18.1 libX11-xcb1-32bit-1.6.2-12.18.1 libX11-xcb1-64bit-1.6.2-12.18.1 libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-Basic-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-Basic-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-HPC-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-HPC-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-HPC-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-HPC-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-BYOS libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-On-Demand libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-SAP-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-Standard-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-Azure-Standard-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-ECS-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-ECS-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-BYOS libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-On-Demand libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-EC2-SAP-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-BYOS libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-On-Demand libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-On-Demand libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-GCE-SAP-On-Demand libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-OCI-BYOS-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-OCI-BYOS-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-OCI-BYOS-SAP-BYOS libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-OCI-BYOS-SAP-BYOS libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-OCI-BYOS-SAP-BYOS libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-LI-BYOS-Production libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-LI-BYOS-Production libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-LI-BYOS-Production libX11-6-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production libX11-data-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production libX11-xcb1-1.6.2-12.18.1 as a component of Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production libX11-6-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server 12 SP5 libX11-6-32bit-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server 12 SP5 libX11-data-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server 12 SP5 libX11-xcb1-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server 12 SP5 libX11-xcb1-32bit-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server 12 SP5 libX11-6-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libX11-6-32bit-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libX11-data-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libX11-xcb1-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libX11-xcb1-32bit-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libX11-devel-1.6.2-12.18.1 as a component of SUSE Linux Enterprise Software Development Kit 12 SP5 LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session. CVE-2021-31535 Image SLES12-SP5-Azure-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-Basic-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-Basic-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-HPC-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-HPC-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-HPC-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-HPC-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-BYOS:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-Azure-SAP-On-Demand:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-Azure-Standard-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-Azure-Standard-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-EC2-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-ECS-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-EC2-ECS-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-EC2-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-BYOS:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-EC2-SAP-On-Demand:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-GCE-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-GCE-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-GCE-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-GCE-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-BYOS:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-On-Demand:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-On-Demand:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-GCE-SAP-On-Demand:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-OCI-BYOS-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-OCI-BYOS-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-OCI-BYOS-SAP-BYOS:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-OCI-BYOS-SAP-BYOS:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-OCI-BYOS-SAP-BYOS:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-LI-BYOS-Production:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-LI-BYOS-Production:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-LI-BYOS-Production:libX11-xcb1-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production:libX11-6-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production:libX11-data-1.6.2-12.18.1 Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production:libX11-xcb1-1.6.2-12.18.1 SUSE Linux Enterprise Server 12 SP5:libX11-6-1.6.2-12.18.1 SUSE Linux Enterprise Server 12 SP5:libX11-6-32bit-1.6.2-12.18.1 SUSE Linux Enterprise Server 12 SP5:libX11-data-1.6.2-12.18.1 SUSE Linux Enterprise Server 12 SP5:libX11-xcb1-1.6.2-12.18.1 SUSE Linux Enterprise Server 12 SP5:libX11-xcb1-32bit-1.6.2-12.18.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libX11-6-1.6.2-12.18.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libX11-6-32bit-1.6.2-12.18.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libX11-data-1.6.2-12.18.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libX11-xcb1-1.6.2-12.18.1 SUSE Linux Enterprise Server for SAP Applications 12 SP5:libX11-xcb1-32bit-1.6.2-12.18.1 SUSE Linux Enterprise Software Development Kit 12 SP5:libX11-devel-1.6.2-12.18.1 important 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20211766-1/ https://www.suse.com/security/cve/CVE-2021-31535.html CVE-2021-31535 https://bugzilla.suse.com/1182506 SUSE Bug 1182506 https://bugzilla.suse.com/1191879 SUSE Bug 1191879 https://bugzilla.suse.com/1205051 SUSE Bug 1205051