Security update for xen SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2024:3979-1 Final 1 1 2024-11-12T16:13:52Z current 2024-11-12T16:13:52Z 2024-11-12T16:13:52Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for xen This update for xen fixes the following issues: Security issues fixed: - CVE-2024-45818: xen: Deadlock in x86 HVM standard VGA handling (bsc#1232622) - CVE-2024-45819: xen: libxl leaks data to PVH guests via ACPI tables (bsc#1232624) Non-security issue fixed: - Xen host hung at boot up with repeated '(XEN) APIC error on CPU on CPU53: 40(40), Received illegal vector' (bsc#1231046) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES12-SP5-EC2-BYOS-2024-3979,Image SLES12-SP5-EC2-ECS-On-Demand-2024-3979,Image SLES12-SP5-EC2-On-Demand-2024-3979,Image SLES12-SP5-EC2-SAP-BYOS-2024-3979,Image SLES12-SP5-EC2-SAP-On-Demand-2024-3979,SUSE-2024-3979,SUSE-SLE-SERVER-12-SP5-LTSS-2024-3979,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2024-3979 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2024/suse-su-20243979-1/ Link for SUSE-SU-2024:3979-1 https://lists.suse.com/pipermail/sle-security-updates/2024-November/019812.html E-Mail link for SUSE-SU-2024:3979-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1231046 SUSE Bug 1231046 https://bugzilla.suse.com/1232622 SUSE Bug 1232622 https://bugzilla.suse.com/1232624 SUSE Bug 1232624 https://www.suse.com/security/cve/CVE-2024-45818/ SUSE CVE CVE-2024-45818 page https://www.suse.com/security/cve/CVE-2024-45819/ SUSE CVE CVE-2024-45819 page 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 SUSE Linux Enterprise Server 12 SP5-LTSS SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-libs-4.12.4_58-3.124.1 xen-tools-domU-4.12.4_58-3.124.1 xen-4.12.4_58-3.124.1 xen-devel-4.12.4_58-3.124.1 xen-doc-html-4.12.4_58-3.124.1 xen-libs-32bit-4.12.4_58-3.124.1 xen-libs-64bit-4.12.4_58-3.124.1 xen-tools-4.12.4_58-3.124.1 xen-libs-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-BYOS xen-tools-domU-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-BYOS xen-libs-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-ECS-On-Demand xen-tools-domU-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-ECS-On-Demand xen-libs-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-On-Demand xen-tools-domU-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-On-Demand xen-libs-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-SAP-BYOS xen-tools-domU-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-SAP-BYOS xen-libs-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-SAP-On-Demand xen-tools-domU-4.12.4_58-3.124.1 as a component of Image SLES12-SP5-EC2-SAP-On-Demand xen-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-doc-html-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-libs-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-libs-32bit-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-tools-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-tools-domU-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS xen-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-doc-html-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-libs-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-libs-32bit-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-tools-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 xen-tools-domU-4.12.4_58-3.124.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 The hypervisor contains code to accelerate VGA memory accesses for HVM guests, when the (virtual) VGA is in "standard" mode. Locking involved there has an unusual discipline, leaving a lock acquired past the return from the function that acquired it. This behavior results in a problem when emulating an instruction with two memory accesses, both of which touch VGA memory (plus some further constraints which aren't relevant here). When emulating the 2nd access, the lock that is already being held would be attempted to be re-acquired, resulting in a deadlock. This deadlock was already found when the code was first introduced, but was analysed incorrectly and the fix was incomplete. Analysis in light of the new finding cannot find a way to make the existing locking discipline work. In staging, this logic has all been removed because it was discovered to be accidentally disabled since Xen 4.7. Therefore, we are fixing the locking problem by backporting the removal of most of the feature. Note that even with the feature disabled, the lock would still be acquired for any accesses to the VGA MMIO region. CVE-2024-45818 Image SLES12-SP5-EC2-BYOS:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-BYOS:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-ECS-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-ECS-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-BYOS:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-BYOS:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-doc-html-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-libs-32bit-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-libs-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-tools-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-tools-domU-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-doc-html-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-libs-32bit-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-libs-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-tools-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-tools-domU-4.12.4_58-3.124.1 important 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/2024/suse-su-20243979-1/ https://www.suse.com/security/cve/CVE-2024-45818.html CVE-2024-45818 https://bugzilla.suse.com/1232622 SUSE Bug 1232622 PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prior contents. CVE-2024-45819 Image SLES12-SP5-EC2-BYOS:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-BYOS:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-ECS-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-ECS-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-BYOS:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-BYOS:xen-tools-domU-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-On-Demand:xen-libs-4.12.4_58-3.124.1 Image SLES12-SP5-EC2-SAP-On-Demand:xen-tools-domU-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-doc-html-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-libs-32bit-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-libs-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-tools-4.12.4_58-3.124.1 SUSE Linux Enterprise Server 12 SP5-LTSS:xen-tools-domU-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-doc-html-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-libs-32bit-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-libs-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-tools-4.12.4_58-3.124.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xen-tools-domU-4.12.4_58-3.124.1 moderate 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/2024/suse-su-20243979-1/ https://www.suse.com/security/cve/CVE-2024-45819.html CVE-2024-45819 https://bugzilla.suse.com/1232624 SUSE Bug 1232624