This update for qemu fixes the following issues :
Remove a backslash '\' escape character from 80-qemu-ga.rules (bsc#1153358) Unlike sles 15 or newer guests, The udev rule file of qemu guest agent in sles 12 sp4 or newer guest only needs one escape character.
Fix use-after-free in slirp (CVE-2018-20126 bsc#1119991)
Fix potential DOS in lsi scsi controller emulation (CVE-2019-12068 bsc#1146873)
Expose taa-no 'feature', indicating CPU does not have the TSX Async Abort vulnerability. (CVE-2019-11135 bsc#1152506)
Expose pschange-mc-no 'feature', indicating CPU does not have the page size change machine check vulnerability (CVE-2018-12207 bsc#1155812)
Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12-SP4
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
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See the\n# GNU General Public License for more details.\n#\n# You should have received a copy of the GNU General Public License\n# along with this program; if not, write to the Free Software\n# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.\n\nif(description)\n{\n script_oid(\"1.3.6.1.4.1.25623.1.0.852810\");\n script_version(\"2020-01-31T08:04:39+0000\");\n script_cve_id(\"CVE-2018-12207\", \"CVE-2019-11135\");\n script_tag(name:\"cvss_base\", value:\"4.9\");\n script_tag(name:\"cvss_base_vector\", value:\"AV:L/AC:L/Au:N/C:N/I:N/A:C\");\n script_tag(name:\"last_modification\", value:\"2020-01-31 08:04:39 +0000 (Fri, 31 Jan 2020)\");\n script_tag(name:\"creation_date\", value:\"2020-01-09 09:32:51 +0000 (Thu, 09 Jan 2020)\");\n script_name(\"openSUSE: Security Advisory for spectre-meltdown-checker (openSUSE-SU-2019:2710-1)\");\n script_category(ACT_GATHER_INFO);\n script_copyright(\"Copyright (C) 2020 Greenbone Networks GmbH\");\n script_family(\"SuSE Local Security Checks\");\n script_dependencies(\"gather-package-list.nasl\");\n script_mandatory_keys(\"ssh/login/suse\", \"ssh/login/rpms\", re:\"ssh/login/release=openSUSELeap15\\.1\");\n\n script_xref(name:\"openSUSE-SU\", value:\"2019:2710-1\");\n script_xref(name:\"URL\", value:\"https://lists.opensuse.org/opensuse-security-announce/2019-12/msg00042.html\");\n\n script_tag(name:\"summary\", value:\"The remote host is missing an update for the 'spectre-meltdown-checker'\n package(s) announced via the openSUSE-SU-2019:2710-1 advisory.\");\n\n script_tag(name:\"vuldetect\", value:\"Checks if a vulnerable package version is present on the target host.\");\n\n script_tag(name:\"insight\", value:\"This update for spectre-meltdown-checker fixes the following issues:\n\n - 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(CVE-2019-11135 bsc#1152506)\n - Expose pschange-mc-no \"feature\", indicating CPU does not have the page\n size change machine check vulnerability (CVE-2018-12207 bsc#1155812)\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE 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 15.0:\n\n zypper in -t patch openSUSE-2019-2505=1", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-11-14T00:00:00", "type": "suse", "title": "Security update for qemu (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 4.9, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12207", "CVE-2018-20126", "CVE-2019-11135", "CVE-2019-12068"], "modified": "2019-11-14T00:00:00", "id": "OPENSUSE-SU-2019:2505-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YGK33QVVCMOM3HRWRJ6FPIFV2JBB4XDB/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-04-18T12:41:37", "description": "An update that solves 6 vulnerabilities and has 8 fixes is\n now available.\n\nDescription:\n\n This update for qemu fixes the following issues:\n\n qemu was updated to v3.1.1.1, a stable, bug-fix-only release, which\n includes 2 fixes we already carry, as well as one additional use-\n after-free fix in slirp. (CVE-2018-20126 bsc#1119991, CVE-2019-14378\n bsc#1143794, and CVE-2019-15890 bsc#1149811 respectively)\n\n Security issues fixed:\n\n - CVE-2019-12068: Fixed potential DOS in lsi scsi controller emulation\n (bsc#1146873)\n - CVE-2019-11135: Expose taa-no \"feature\", indicating CPU does not have\n the TSX Async Abort vulnerability. (bsc#1152506)\n - CVE-2018-12207: Expose pschange-mc-no \"feature\", indicating CPU does not\n have the page size change machine check vulnerability (bsc#1117665)\n\n Other issues fixed:\n\n - Change how this bug gets fixed (bsc#1144087)\n - Disable file locking in the Xen PV disk backend to avoid locking issues\n with PV domUs during migration. The issues triggered by the locking can\n not be properly handled in libxl. The locking introduced in qemu-2.10\n was removed again in qemu-4.0. (bsc#1079730, bsc#1098403, bsc#1111025,\n bsc#1145427, bsc#1145774)\n - Feature support for vfio-ccw dasd ipl (bsc#1145379 jira-SLE-6132)\n - Additional hardware instruction support for s390, also update qemu linux\n headers to 5.2-rc1 (bsc#1145436 jira-SLE-6237)\n\n\n This update was imported from the SUSE:SLE-15-SP1:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE 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 15.1:\n\n zypper in -t patch openSUSE-2019-2510=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2019-11-14T00:00:00", "type": "suse", "title": "Security update for qemu (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12207", "CVE-2018-20126", "CVE-2019-11135", "CVE-2019-12068", "CVE-2019-14378", "CVE-2019-15890"], "modified": "2019-11-14T00:00:00", "id": "OPENSUSE-SU-2019:2510-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KGVFZGJMBR53343ITOTWO7YW2JVKGHDT/", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2022-11-09T21:01:59", "description": "An update that fixes two vulnerabilities is now available.\n\nDescription:\n\n This update for spectre-meltdown-checker fixes the following issues:\n\n - feat: implement TAA detection (CVE-2019-11135 bsc#1139073)\n - feat: implement MCEPSC / iTLB Multihit detection (CVE-2018-12207\n bsc#1117665)\n - feat: taa: add TSX_CTRL MSR detection in hardware info\n - feat: fwdb: use both Intel GitHub repo and MCEdb to build our firmware\n version database\n - feat: use --live with --kernel/--config/--map to override file\n detection in live mode\n - enh: rework the vuln logic of MDS with --paranoid (fixes #307)\n - enh: explain that Enhanced IBRS is better for performance than classic\n IBRS\n - enh: kernel: autodetect customized arch kernels from cmdline\n - enh: kernel decompression: better tolerance against missing tools\n - enh: mock: implement reading from /proc/cmdline\n - fix: variant3a: Silvermont CPUs are not vulnerable to variant 3a\n - fix: lockdown: detect Red Hat locked down kernels (impacts MSR writes)\n - fix: lockdown: detect locked down mode in vanilla 5.4+ kernels\n - fix: sgx: on locked down kernels, fallback to CPUID bit for detection\n - fix: fwdb: builtin version takes precedence if the local cached\n version is older\n - fix: pteinv: don't check kernel image if not available\n - fix: silence useless error from grep (fixes #322)\n - fix: msr: fix msr module detection under Ubuntu 19.10 (fixes #316)\n - fix: mocking value for read_msr\n - chore: rename mcedb cmdline parameters to fwdb, and change db version\n scheme\n - chore: fwdb: update to v130.20191104+i20191027\n - chore: add GitHub check workflow\n\n This update was imported from the SUSE:SLE-15-SP1:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE 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 15.1:\n\n zypper in -t patch openSUSE-2019-2710=1", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-12-31T00:00:00", "type": "suse", "title": "Security update for spectre-meltdown-checker (moderate)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 4.9, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12207", "CVE-2019-11135"], "modified": "2019-12-31T00:00:00", "id": "OPENSUSE-SU-2019:2710-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VPOZE7PRHYWJK54T4PNLQG6ZIUGENA75/", "cvss": {"score": 4.9, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-04-18T12:41:37", "description": "An update that fixes 6 vulnerabilities is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n - CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a\n race condition in the Instruction Fetch Unit of the Intel CPU to cause a\n Machine Exception during Page Size Change, causing the CPU core to be\n non-functional. (bsc#1155945)\n - CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs\n with Transactional Memory support could be used to facilitate\n sidechannel information leaks out of microarchitectural buffers, similar\n to the previously described \"Microarchitectural Data Sampling\" attack.\n (bsc#1152497).\n - CVE-2019-18425: 32-bit PV guest user mode could elevate its privileges\n to that\n of the guest kernel. (bsc#1154456).\n - CVE-2019-18421: A malicious PV guest administrator may have been able to\n escalate their privilege to that of the host. (bsc#1154458).\n - CVE-2019-18420: Malicious x86 PV guests may have caused a hypervisor\n crash, resulting in a Denial of Service (Dos). (bsc#1154448)\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE 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 15.0:\n\n zypper in -t patch openSUSE-2019-2506=1", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2019-11-14T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12207", "CVE-2019-11135", "CVE-2019-18420", "CVE-2019-18421", "CVE-2019-18424", "CVE-2019-18425"], "modified": "2019-11-14T00:00:00", "id": "OPENSUSE-SU-2019:2506-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/R6YJ2KCZGK5VBSLWES67ERVZEO724CJC/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2023-05-24T14:32:17", "description": "This update for qemu fixes the following issues :\n\n - Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE15\n\n - Fix use-after-free in slirp (CVE-2018-20126 bsc#1119991)\n\n - Fix potential DOS in lsi scsi controller emulation (CVE-2019-12068 bsc#1146873)\n\n - Expose taa-no 'feature', indicating CPU does not have the TSX Async Abort vulnerability. 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A privileged guest user may use this flaw to induce a hardware Machine Check Error on the host processor, resulting in a severe DoS scenario by halting the processor.\\n\\nSystem software like OS OR Virtual Machine Monitor (VMM) use virtual memory system for storing program instructions and data in memory. Virtual Memory system uses Paging structures like Page Tables and Page Directories to manage system memory. The processor's Memory Management Unit (MMU) uses Paging structure entries to translate program's virtual memory addresses to physical memory addresses. The processor stores these address translations into its local cache buffer called - Translation Lookaside Buffer (TLB). 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