Security update for xen SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:0332-1 Final 1 1 2022-02-04T08:30:13Z current 2022-02-04T08:30:13Z 2022-02-04T08:30:13Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for xen This update for xen fixes the following issues: - CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581) - CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2022-332,SUSE-SLE-Product-HPC-15-2022-332,SUSE-SLE-Product-SLES_SAP-15-2022-332 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-20220332-1/ Link for SUSE-SU-2022:0332-1 https://lists.suse.com/pipermail/sle-security-updates/2022-February/010189.html E-Mail link for SUSE-SU-2022:0332-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1194581 SUSE Bug 1194581 https://bugzilla.suse.com/1194588 SUSE Bug 1194588 https://www.suse.com/security/cve/CVE-2022-23034/ SUSE CVE CVE-2022-23034 page https://www.suse.com/security/cve/CVE-2022-23035/ SUSE CVE CVE-2022-23035 page SUSE Linux Enterprise High Performance Computing 15-ESPOS SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise Server for SAP Applications 15 xen-4.10.4_32-3.71.1 xen-devel-4.10.4_32-3.71.1 xen-doc-html-4.10.4_32-3.71.1 xen-libs-4.10.4_32-3.71.1 xen-libs-32bit-4.10.4_32-3.71.1 xen-libs-64bit-4.10.4_32-3.71.1 xen-tools-4.10.4_32-3.71.1 xen-tools-domU-4.10.4_32-3.71.1 xen-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS xen-devel-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS xen-libs-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS xen-tools-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS xen-tools-domU-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS xen-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS xen-devel-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS xen-libs-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS xen-tools-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS xen-tools-domU-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS xen-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 xen-devel-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 xen-libs-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 xen-tools-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 xen-tools-domU-4.10.4_32-3.71.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check. CVE-2022-23034 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-tools-domU-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-tools-domU-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-tools-domU-4.10.4_32-3.71.1 moderate 2.1 AV:L/AC:L/Au:N/C:N/I:N/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/2022/suse-su-20220332-1/ https://www.suse.com/security/cve/CVE-2022-23034.html CVE-2022-23034 https://bugzilla.suse.com/1194581 SUSE Bug 1194581 Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid. CVE-2022-23035 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:xen-tools-domU-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:xen-tools-domU-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-devel-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-libs-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-tools-4.10.4_32-3.71.1 SUSE Linux Enterprise Server for SAP Applications 15:xen-tools-domU-4.10.4_32-3.71.1 moderate 4.7 AV:L/AC:M/Au:N/C:N/I:N/A:C 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/2022/suse-su-20220332-1/ https://www.suse.com/security/cve/CVE-2022-23035.html CVE-2022-23035 https://bugzilla.suse.com/1194588 SUSE Bug 1194588