{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for xen","title":"Title of the patch"},{"category":"description","text":"This update for xen fixes the following issues:\n\n- CVE-2023-46835: x86/AMD: mismatch in IOMMU quarantine page table levels (XSA-445) (bsc#1216654).\n- CVE-2023-46836: x86: BTC/SRSO fixes not fully effective (XSA-446) (bsc#1216807).\n","title":"Description of the patch"},{"category":"details","text":"SUSE-2023-4485,SUSE-SLE-Product-HPC-15-SP1-LTSS-2023-4485,SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-4485,SUSE-SLE-Product-SLES_SAP-15-SP1-2023-4485","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_4485-1.json"},{"category":"self","summary":"URL for SUSE-SU-2023:4485-1","url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234485-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2023:4485-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2023-November/017125.html"},{"category":"self","summary":"SUSE Bug 1216654","url":"https://bugzilla.suse.com/1216654"},{"category":"self","summary":"SUSE Bug 1216807","url":"https://bugzilla.suse.com/1216807"},{"category":"self","summary":"SUSE CVE CVE-2023-46835 page","url":"https://www.suse.com/security/cve/CVE-2023-46835/"},{"category":"self","summary":"SUSE CVE CVE-2023-46836 page","url":"https://www.suse.com/security/cve/CVE-2023-46836/"}],"title":"Security update for xen","tracking":{"current_release_date":"2023-11-20T13:23:03Z","generator":{"date":"2023-11-20T13:23:03Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2023:4485-1","initial_release_date":"2023-11-20T13:23:03Z","revision_history":[{"date":"2023-11-20T13:23:03Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"xen-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-4.12.4_42-150100.3.98.1.aarch64"}},{"category":"product_version","name":"xen-devel-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-devel-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-devel-4.12.4_42-150100.3.98.1.aarch64"}},{"category":"product_version","name":"xen-doc-html-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-doc-html-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-doc-html-4.12.4_42-150100.3.98.1.aarch64"}},{"category":"product_version","name":"xen-libs-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-libs-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-libs-4.12.4_42-150100.3.98.1.aarch64"}},{"category":"product_version","name":"xen-tools-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-tools-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-tools-4.12.4_42-150100.3.98.1.aarch64"}},{"category":"product_version","name":"xen-tools-domU-4.12.4_42-150100.3.98.1.aarch64","product":{"name":"xen-tools-domU-4.12.4_42-150100.3.98.1.aarch64","product_id":"xen-tools-domU-4.12.4_42-150100.3.98.1.aarch64"}}],"category":"architecture","name":"aarch64"},{"branches":[{"category":"product_version","name":"xen-libs-64bit-4.12.4_42-150100.3.98.1.aarch64_ilp32","product":{"name":"xen-libs-64bit-4.12.4_42-150100.3.98.1.aarch64_ilp32","product_id":"xen-libs-64bit-4.12.4_42-150100.3.98.1.aarch64_ilp32"}}],"category":"architecture","name":"aarch64_ilp32"},{"branches":[{"category":"product_version","name":"xen-devel-4.12.4_42-150100.3.98.1.i586","product":{"name":"xen-devel-4.12.4_42-150100.3.98.1.i586","product_id":"xen-devel-4.12.4_42-150100.3.98.1.i586"}},{"category":"product_version","name":"xen-libs-4.12.4_42-150100.3.98.1.i586","product":{"name":"xen-libs-4.12.4_42-150100.3.98.1.i586","product_id":"xen-libs-4.12.4_42-150100.3.98.1.i586"}},{"category":"product_version","name":"xen-tools-domU-4.12.4_42-150100.3.98.1.i586","product":{"name":"xen-tools-domU-4.12.4_42-150100.3.98.1.i586","product_id":"xen-tools-domU-4.12.4_42-150100.3.98.1.i586"}}],"category":"architecture","name":"i586"},{"branches":[{"category":"product_version","name":"xen-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-devel-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-devel-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-devel-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-doc-html-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-doc-html-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-doc-html-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-libs-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-libs-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-libs-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-libs-32bit-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-libs-32bit-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-libs-32bit-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-tools-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-tools-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-tools-4.12.4_42-150100.3.98.1.x86_64"}},{"category":"product_version","name":"xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","product":{"name":"xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","product_id":"xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64"}}],"category":"architecture","name":"x86_64"},{"branches":[{"category":"product_name","name":"SUSE 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Page","text":"https://www.suse.com/security/cve/CVE-2023-46835"}],"notes":[{"category":"general","text":"The current setup of the quarantine page tables assumes that the\nquarantine domain (dom_io) has been initialized with an address width\nof DEFAULT_DOMAIN_ADDRESS_WIDTH (48) and hence 4 page table levels.\n\nHowever dom_io being a PV domain gets the AMD-Vi IOMMU page tables\nlevels based on the maximum (hot pluggable) RAM address, and hence on\nsystems with no RAM above the 512GB mark only 3 page-table levels are\nconfigured in the IOMMU.\n\nOn systems without RAM above the 512GB boundary\namd_iommu_quarantine_init() will setup page tables for the scratch\npage with 4 levels, while the IOMMU will be configured to use 3 levels\nonly, resulting in the last page table directory (PDE) effectively\nbecoming a page table entry (PTE), and hence a device in quarantine\nmode gaining write access to the page destined to be a PDE.\n\nDue to this page table level mismatch, the sink page the device gets\nread/write access to is no longer cleared between device assignment,\npossibly leading to data leaks.\n","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 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installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 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Server for SAP Applications 15 SP1:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server for SAP Applications 15 SP1:xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64"]}],"threats":[{"category":"impact","date":"2023-11-20T13:23:03Z","details":"moderate"}],"title":"CVE-2023-46835"},{"cve":"CVE-2023-46836","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2023-46836"}],"notes":[{"category":"general","text":"The fixes for XSA-422 (Branch Type Confusion) and XSA-434 (Speculative\nReturn Stack Overflow) are not IRQ-safe.  It was believed that the\nmitigations always operated in contexts with IRQs disabled.\n\nHowever, the original XSA-254 fix for Meltdown (XPTI) deliberately left\ninterrupts enabled on two entry paths; one unconditionally, and one\nconditionally on whether XPTI was active.\n\nAs BTC/SRSO and Meltdown affect different CPU vendors, the mitigations\nare not active together by default.  Therefore, there is a race\ncondition whereby a malicious PV guest can bypass BTC/SRSO protections\nand launch a BTC/SRSO attack against Xen.\n","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 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installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:xen-tools-domU-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-devel-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-libs-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 SP1-LTSS:xen-tools-4.12.4_42-150100.3.98.1.x86_64","SUSE Linux Enterprise Server 15 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