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{"id": "SUSE_SU-2022-2600-1.NASL", "vendorId": null, "type": "nessus", "bulletinFamily": "scanner", "title": "SUSE SLES15 Security Update : xen (SUSE-SU-2022:2600-1)", "description": "The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2600-1 advisory.\n\n - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21123)\n\n - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)\n\n - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)\n\n - Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure. (CVE-2022-23825)\n\n - x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g.\n PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, the logic for acquiring a type reference has a race condition, whereby a safely TLB flush is issued too early and creates a window where the guest can re-establish the read/write mapping before writeability is prohibited. (CVE-2022-26362)\n\n - x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables;\n updates need auditing by Xen. Unfortunately, Xen's safety logic doesn't account for CPU-induced cache non- coherency; cases where the CPU can cause the content of the cache to be different to the content in main memory. In such cases, Xen's safety logic can incorrectly conclude that the contents of a page is safe.\n (CVE-2022-26363, CVE-2022-26364)\n\n - Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)\n\n - insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary. (CVE-2022-33745)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "published": "2022-07-30T00:00:00", "modified": "2023-03-10T00:00:00", "epss": [], "cvss": {"score": 0.0, "vector": "NONE"}, "cvss2": {}, "cvss3": {}, "href": "https://www.tenable.com/plugins/nessus/163638", "reporter": "This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33745", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29900", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21123", "https://bugzilla.suse.com/1201394", "https://www.suse.com/security/cve/CVE-2022-21166", "https://www.suse.com/security/cve/CVE-2022-26363", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23825", "https://bugzilla.suse.com/1201469", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21166", "http://www.nessus.org/u?c4ed3cfd", "https://www.suse.com/security/cve/CVE-2022-26364", "https://www.suse.com/security/cve/CVE-2022-26362", "https://www.suse.com/security/cve/CVE-2022-29900", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26362", "https://www.suse.com/security/cve/CVE-2022-21123", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21125", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26364", "https://bugzilla.suse.com/1199965", "https://bugzilla.suse.com/1200549", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26363", "https://www.suse.com/security/cve/CVE-2022-23816", "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23816", "https://bugzilla.suse.com/1199966", "https://www.suse.com/security/cve/CVE-2022-33745", "https://www.suse.com/security/cve/CVE-2022-23825", "https://www.suse.com/security/cve/CVE-2022-21125"], "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"], "immutableFields": [], "lastseen": "2023-05-17T16:33:46", "viewCount": 119, "enchantments": {"score": {"value": 0.2, "vector": "NONE"}, "dependencies": {"references": [{"type": "almalinux", "idList": ["ALSA-2022:6437", "ALSA-2022:6460", "ALSA-2022:7110", "ALSA-2022:7134", "ALSA-2022:7933", "ALSA-2022:8267"]}, {"type": "alpinelinux", "idList": ["ALPINE:CVE-2022-33745"]}, {"type": "amazon", "idList": ["ALAS-2022-1606", "ALAS2-2022-1813"]}, {"type": "amd", "idList": ["AMD-SB-1037"]}, {"type": "avleonov", "idList": ["AVLEONOV:317FBD7DA93C95993A9FFF38FB04A987"]}, {"type": "centos", "idList": ["CESA-2022:5937"]}, {"type": "citrix", "idList": ["CTX460064", "CTX461397", "CTX463455"]}, {"type": "cloudfoundry", "idList": ["CFOUNDRY:A03F5AC2013ED260DC64C02E99816F92"]}, {"type": "cve", "idList": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"]}, {"type": "debian", "idList": ["DEBIAN:DLA-3065-1:C1710", "DEBIAN:DLA-3102-1:8DD52", "DEBIAN:DSA-5173-1:5A28E", "DEBIAN:DSA-5178-1:9B2D2", "DEBIAN:DSA-5184-1:CABB7", "DEBIAN:DSA-5207-1:0D465", "DEBIAN:DSA-5272-1:EF934"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2022-21123", "DEBIANCVE:CVE-2022-21125", "DEBIANCVE:CVE-2022-21166", "DEBIANCVE:CVE-2022-23816", "DEBIANCVE:CVE-2022-23825", "DEBIANCVE:CVE-2022-26362", "DEBIANCVE:CVE-2022-26363", "DEBIANCVE:CVE-2022-26364", "DEBIANCVE:CVE-2022-29900", "DEBIANCVE:CVE-2022-33745"]}, {"type": "f5", "idList": ["F5:K04808933", "F5:K08152433", "F5:K57185580", "F5:K83713003"]}, {"type": "fedora", "idList": ["FEDORA:1327A30569C4", "FEDORA:3622F307260C", "FEDORA:3E0893021FB2", "FEDORA:4AEF63070D90", "FEDORA:4B1E230C3DF7", "FEDORA:692B930E856E", "FEDORA:79262304C76D", "FEDORA:A04F33104B2B", "FEDORA:B69D63104B36", "FEDORA:B930F30697B0", "FEDORA:D29113027CBD", 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{"suse": [{"lastseen": "2022-11-06T12:08:13", "description": "An update that fixes 10 vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with\n non-coherent mappings (XSA-402) (bsc#1199966).\n - CVE-2022-21123, CVE-2022-21125, CVE-2022-21166: Fixed MMIO stale data\n vulnerabilities on x86 (XSA-404) (bsc#1200549).\n - CVE-2022-26362: Fixed a race condition in typeref acquisition (XSA-401)\n (bsc#1199965).\n - CVE-2022-33745: Fixed insufficient TLB flush for x86 PV guests in shadow\n mode (XSA-408) (bsc#1201394).\n - CVE-2022-23816, CVE-2022-23825, CVE-2022-29900: Fixed RETBLEED\n vulnerability, arbitrary speculative code execution with return\n instructions (XSA-407) (bsc#1201469).\n\n Fixed several upstream bugs (bsc#1027519).\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap Micro 5.2:\n\n zypper in -t patch openSUSE-Leap-Micro-5.2-2022-2599=1", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-09-01T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"], "modified": "2022-09-01T00:00:00", "id": "SUSE-SU-2022:2599-2", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RSP3EQ6WE46JI7XQGMWB5BZDZ4C24GZM/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-11-08T04:08:17", "description": "An update that fixes 10 vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with\n non-coherent mappings (XSA-402) (bsc#1199966).\n - CVE-2022-21123, CVE-2022-21125, CVE-2022-21166: Fixed MMIO stale data\n vulnerabilities on x86 (XSA-404) (bsc#1200549).\n - CVE-2022-26362: Fixed a race condition in typeref acquisition (XSA-401)\n (bsc#1199965).\n - CVE-2022-33745: Fixed insufficient TLB flush for x86 PV guests in shadow\n mode (XSA-408) (bsc#1201394).\n - CVE-2022-23816, CVE-2022-23825, CVE-2022-29900: Fixed RETBLEED\n vulnerability, arbitrary speculative code execution with return\n instructions (XSA-407) (bsc#1201469).\n\n Fixed several upstream bugs (bsc#1027519).\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.4:\n\n zypper in -t patch openSUSE-SLE-15.4-2022-2597=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP4:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2022-2597=1\n\n - SUSE Linux Enterprise Module for Basesystem 15-SP4:\n\n zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2022-2597=1", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-07-29T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"], "modified": "2022-07-29T00:00:00", "id": "SUSE-SU-2022:2597-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UICE2MVKZP2UXZY46A5YHXYPLELBMPJ6/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-11-08T04:08:17", "description": "An update that fixes 10 vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with\n non-coherent mappings (XSA-402) (bsc#1199966).\n - CVE-2022-21123, CVE-2022-21125, CVE-2022-21166: Fixed MMIO stale data\n vulnerabilities on x86 (XSA-404) (bsc#1200549).\n - CVE-2022-26362: Fixed a race condition in typeref acquisition (XSA-401)\n (bsc#1199965).\n - CVE-2022-33745: Fixed insufficient TLB flush for x86 PV guests in shadow\n mode (XSA-408) (bsc#1201394).\n - CVE-2022-23816, CVE-2022-23825, CVE-2022-29900: Fixed RETBLEED\n vulnerability, arbitrary speculative code execution with return\n instructions (XSA-407) (bsc#1201469).\n\n Fixed several upstream bugs (bsc#1027519).\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2022-2599=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-2599=1\n\n - SUSE Linux Enterprise Module for Basesystem 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-2599=1\n\n - SUSE Linux Enterprise Micro 5.2:\n\n zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-2599=1\n\n - SUSE Linux Enterprise Micro 5.1:\n\n zypper in -t patch SUSE-SUSE-MicroOS-5.1-2022-2599=1", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-07-29T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"], "modified": "2022-07-29T00:00:00", "id": "SUSE-SU-2022:2599-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/DCYWSXY3DTTHLBXIFEBN2AMO6EYD42CZ/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-11-08T04:08:17", "description": "An update that fixes three vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2022-26362: Fixed race condition in typeref acquisition (bsc#1199965)\n - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with\n non-coherent mappings (bsc#1199966)\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.4:\n\n zypper in -t patch openSUSE-SLE-15.4-2022-2296=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP4:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2022-2296=1\n\n - SUSE Linux Enterprise Module for Basesystem 15-SP4:\n\n zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2022-2296=1", "cvss3": {"exploitabilityScore": 0.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "baseScore": 6.7, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-07-06T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364"], "modified": "2022-07-06T00:00:00", "id": "SUSE-SU-2022:2296-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/HYKI3QCQ663H6QZ3AND5QQGN7GXSXUZF/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-11-06T19:34:01", "description": "An update that fixes 7 vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2022-26358, CVE-2022-26359, CVE-2022-26360, CVE-2022-26361: Fixed\n IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues (XSA-400)\n (bsc#1197426)\n - CVE-2022-26362: Fixed race condition in typeref acquisition (bsc#1199965)\n - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with\n non-coherent mappings (bsc#1199966)\n\n\nSpecial Instructions and Notes:\n\n Please reboot the system after installing this update.\n\nPatch Instructions:\n\n To install this SUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.3:\n\n zypper in -t patch openSUSE-SLE-15.3-2022-2065=1\n\n - SUSE Linux Enterprise Module for Server Applications 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-2065=1\n\n - SUSE Linux Enterprise Module for Basesystem 15-SP3:\n\n zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-2065=1\n\n - SUSE Linux Enterprise Micro 5.2:\n\n zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-2065=1\n\n - SUSE Linux Enterprise Micro 5.1:\n\n zypper in -t patch SUSE-SUSE-MicroOS-5.1-2022-2065=1", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-06-13T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26358", "CVE-2022-26359", "CVE-2022-26360", "CVE-2022-26361", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364"], "modified": "2022-06-13T00:00:00", "id": "SUSE-SU-2022:2065-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/QKGLIPJLFVU5ELXR7YEMNU4OFAIB33BH/", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2023-05-17T16:32:55", "description": "The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2560-1 advisory.\n\n - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21123)\n\n - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)\n\n - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)\n\n - Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure. (CVE-2022-23825)\n\n - x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g.\n PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, the logic for acquiring a type reference has a race condition, whereby a safely TLB flush is issued too early and creates a window where the guest can re-establish the read/write mapping before writeability is prohibited. (CVE-2022-26362)\n\n - x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables;\n updates need auditing by Xen. Unfortunately, Xen's safety logic doesn't account for CPU-induced cache non- coherency; cases where the CPU can cause the content of the cache to be different to the content in main memory. In such cases, Xen's safety logic can incorrectly conclude that the contents of a page is safe.\n (CVE-2022-26363, CVE-2022-26364)\n\n - Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)\n\n - insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary. (CVE-2022-33745)\n\nNote that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.", "cvss3": {}, "published": "2022-07-28T00:00:00", "type": "nessus", "title": "SUSE SLES12 Security Update : xen (SUSE-SU-2022:2560-1)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23816", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900", "CVE-2022-33745"], "modified": "2023-03-10T00:00:00", "cpe": ["p-cpe:/a:novell:suse_linux:xen", "p-cpe:/a:novell:suse_linux:xen-doc-html", "p-cpe:/a:novell:suse_linux:xen-libs", "p-cpe:/a:novell:suse_linux:xen-libs-32bit", "p-cpe:/a:novell:suse_linux:xen-tools", "p-cpe:/a:novell:suse_linux:xen-tools-domu", "cpe:/o:novell:suse_linux:12"], "id": "SUSE_SU-2022-2560-1.NASL", "href": "https://www.tenable.com/plugins/nessus/163507", "sourceData": "##\n# (C) Tenable, Inc.\n#\n# The package checks in this plugin were extracted from\n# SUSE update advisory SUSE-SU-2022:2560-1. The text itself\n# is copyright (C) SUSE.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(163507);\n script_version(\"1.6\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2023/03/10\");\n\n script_cve_id(\n \"CVE-2022-21123\",\n \"CVE-2022-21125\",\n \"CVE-2022-21166\",\n \"CVE-2022-23816\",\n \"CVE-2022-23825\",\n \"CVE-2022-26362\",\n \"CVE-2022-26363\",\n \"CVE-2022-26364\",\n \"CVE-2022-29900\",\n \"CVE-2022-33745\"\n );\n script_xref(name:\"SuSE\", value:\"SUSE-SU-2022:2560-1\");\n script_xref(name:\"CEA-ID\", value:\"CEA-2022-0026\");\n\n script_name(english:\"SUSE SLES12 Security Update : xen (SUSE-SU-2022:2560-1)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote SUSE host is missing one or more security updates.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in\nthe SUSE-SU-2022:2560-1 advisory.\n\n - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated\n user to potentially enable information disclosure via local access. (CVE-2022-21123)\n\n - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an\n authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)\n\n - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an\n authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)\n\n - Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially\n leading to information disclosure. (CVE-2022-23825)\n\n - x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition\n to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g.\n PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. 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