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SUSE: 2022:1359-1 Important: Denial of Service Threat in Xen

An update that fixes 9 vulnerabilities is now available. . SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2022:1359-1 Rating: important References: #1196915 #1197423 #1197425 #1197426 Cross-References: CVE-2021-26401 CVE-2022-0001 CVE-2022-0002 CVE-2022-26356 CVE-2022-26357 CVE-2022-26358 CVE-2022-26359 CVE-2022-26360 CVE-2022-26361 CVSS scores: CVE-2021-26401 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-26401 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-0001 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-0001 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-0002 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-0002 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-26356 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2022-26356 (SUSE): 6.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H CVE-2022-26357 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-26357 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2022-26358 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-26358 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2022-26359 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-26359 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2022-26360 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-26360 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2022-26361(NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-26361 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H Affected Products: SUSE Linux Enterprise High Performance Computing 15-ESPOS SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise Server for SAP 15 ______________________________________________________________________________ An update that fixes 9 vulnerabilities is now available. Description: This update for xen fixes the following issues: - CVE-2022-26356: Fixed potential race conditions in dirty memory tracking that could cause a denial of service in the host (bsc#1197423). - CVE-2022-26357: Fixed a potential race condition in memory cleanup for hosts using VT-d IOMMU hardware, which could lead to a denial of service in the host (bsc#1197425). - CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361: Fixed various memory corruption issues for hosts using VT-d or AMD-Vi IOMMU hardware. These could be leveraged by an attacker to cause a denial of service in the host (bsc#1197426). - CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: Added BHB speculation issue mitigations (bsc#1196915). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-1359=1 - SUSE Linux Enterprise High Performance Computing 15-LTSS: zypper in -t patch SUSE-SLE-Product-HPC-15-2022-1359=1 - SUSE Linux Enterprise High Performance Computing 15-ESPOS: zypper in -t patch SUSE-SLE-Product-HPC-15-2022-1359=1 Package List: - SUSE Linux Enterprise Server for SAP 15 (x86_64): xen-4.10.4_34-150000.3.74.1 xen-debugsource-4.10.4_34-150000.3.74.1 xen-devel-4.10.4_34-150000.3.74.1 xen-libs-4.10.4_34-150000.3.74.1 xen-libs-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-4.10.4_34-150000.3.74.1 xen-tools-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-domU-4.10.4_34-150000.3.74.1 xen-tools-domU-debuginfo-4.10.4_34-150000.3.74.1 - SUSE Linux Enterprise High Performance Computing 15-LTSS (x86_64): xen-4.10.4_34-150000.3.74.1 xen-debugsource-4.10.4_34-150000.3.74.1 xen-devel-4.10.4_34-150000.3.74.1 xen-libs-4.10.4_34-150000.3.74.1 xen-libs-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-4.10.4_34-150000.3.74.1 xen-tools-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-domU-4.10.4_34-150000.3.74.1 xen-tools-domU-debuginfo-4.10.4_34-150000.3.74.1 - SUSE Linux Enterprise High Performance Computing 15-ESPOS (x86_64): xen-4.10.4_34-150000.3.74.1 xen-debugsource-4.10.4_34-150000.3.74.1 xen-devel-4.10.4_34-150000.3.74.1 xen-libs-4.10.4_34-150000.3.74.1 xen-libs-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-4.10.4_34-150000.3.74.1 xen-tools-debuginfo-4.10.4_34-150000.3.74.1 xen-tools-domU-4.10.4_34-150000.3.74.1 xen-tools-domU-debuginfo-4.10.4_34-150000.3.74.1 References: https://www.suse.com/security/cve/CVE-2021-26401.html https://www.suse.com/security/cve/CVE-2022-0001.html https://www.suse.com/security/cve/CVE-2022-0002.html https://www.suse.com/security/cve/CVE-2022-26356.html https://www.suse.com/security/cve/CVE-2022-26357.html https://www.suse.com/security/cve/CVE-2022-26358.html https://www.suse.com/security/cve/CVE-2022-26359.html https://www.suse.com/security/cve/CVE-2022-26360.html https://www.suse.com/security/cve/CVE-2022-26361.html https://bugzilla.suse.com/1196915 https://bugzilla.suse.com/1197423 https://bugzilla.suse.com/1197425 https://bugzilla.suse.com/1197426 . Significant SUSE patch for Xen resolves urgent vulnerabilities related to service disruptions and memory safetyconcerns.. denial of service risks,SUSE xen security update,important SUSE advisory. . Severity: Important. LinuxSecurity.com Team

Apr 25, 2022 •Important SuSE