Security Bulletin: IBM Security QRadar Packet Capture is vulnerable to Intel Microarchitectural Data Sampling (MDS) Vulnerabilites (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091)
## Summary
A potential security vulnerability in CPUs may allow information disclosure.
## Vulnerability Details
**CVEID:** CVE-2018-12126
**Description: **Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
**CVSS Base Score:** 6.5 Medium
**CVSS Temporal Score:** See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160990> for the current score
**CVSS Vector:** CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N .
**CVEID:** CVE-2018-12127
**Description: **Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
**CVSS Base Score:** 6.5 Medium
**CVSS Temporal Score:** See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160990> for the current score
**CVSS Vector:** CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
**CVEID:** CVE-2018-12130
**Description: **Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
**CVSS Base Score:** 6.5 Medium
**CVSS Temporal Score:** <https://exchange.xforce.ibmcloud.com/vulnerabilities/160992> for the current score
**CVSS Vector:** CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
**CVEID: **CVE-2019-11091
**Description: **Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
**CVSS Base Score:** 3.8 Low
**CVSS Temporal Score:** See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160993> for the current score
**CVSS Vector:** CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
## Affected Products and Versions
IBM Security QRadar Packet Capture 7.2.0 - 7.2.8 Patch 5
IBM Security QRadar Packet Capture 7.3.0 - 7.3.1 Patch 1
## Remediation/Fixes
[IBM Security QRadar Packet Capture 7.2.8 Patch 6](<https://www-945.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+Packet+Capture&release=7.2.0&platform=Linux&function=fixId&fixids=7.2.8-QRadar-PCAP-build-285&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp>)
[IBM Security QRadar Packet Capture 7.3.2 GA](<https://www-945.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+Packet+Capture&release=7.3.0&platform=Linux&function=fixId&fixids=7.3.2-QRadar-PCAP-build-337&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp>)
##
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"obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-14T00:00:00", "id": "ELSA-2019-1180", "href": "http://linux.oracle.com/errata/ELSA-2019-1180.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:24:26", "description": "[2.6.39-400.310.1]\n- x86/speculation/mds: Make cpu_matches() __cpuinit (Patrick Colp) [Orabug: 29752091] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} {CVE-2019-11091}\n- x86/speculation/mds: Only worry about firmware loaded microcode (Patrick Colp) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} {CVE-2019-11091}\n[2.6.39-400.309.1]\n- x86/mds: Add empty commit for CVE-2019-11091 (Patrick Colp) [Orabug: 29721938] {CVE-2019-11091}\n- x86/speculation/mds: Fix comment (Boris Ostrovsky) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mitigation mode VMWERV (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add sysfs reporting for MDS (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mitigation control for MDS (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Allow runtime checking of CPU features (Patrick Colp) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Improve coverage for MDS vulnerability (Boris Ostrovsky) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Clear CPU buffers on exit to user (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mds_clear_cpu_buffers() (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add BUG_MSBDS_ONLY (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add basic bug infrastructure for MDS (Andi Kleen) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation: Consolidate CPU whitelists (Thomas Gleixner) [Orabug: 29641786] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-14T00:00:00", "type": "oraclelinux", "title": "Unbreakable Enterprise kernel security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-14T00:00:00", "id": "ELSA-2019-4637", "href": "http://linux.oracle.com/errata/ELSA-2019-4637.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:25:12", "description": "[4.5.0-10.0.1]\n- bump the version\n[4.5.0-10.el7_6.9]\n- qemu: Don't cache microcode version (CVE-2018-12127, CVE-2018-12126, CVE-2018-12130)\n[4.5.0-10.el7_6.8]\n- cpu_x86: Do not cache microcode version (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130)\n- cputest: Add data for Intel(R) Xeon(R) CPU E3-1225 v5 (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130)\n- cpu_map: Define md-clear CPUID bit (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130)", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-15T00:00:00", "type": "oraclelinux", "title": "libvirt security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T00:00:00", "id": "ELSA-2019-1177", "href": "http://linux.oracle.com/errata/ELSA-2019-1177.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:25:16", "description": "[3.10.0-957.12.2.OL7]\n- Oracle Linux certificates (Alexey Petrenko)\n- Oracle Linux RHCK Module Signing Key was compiled into kernel (olkmod_signing_key.x509)(alexey.petrenko@oracle.com)\n- Update x509.genkey [bug 24817676]\n[3.10.0-957.12.2]\n- [x86] x86/speculation/mds: Add SMT warning message (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation: Move arch_smt_update() call to after mitigation decisions (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [documentation] x86/speculation/mds: Add mds=full,nosmt cmdline option (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [kernel] x86/speculation: Remove redundant arch_smt_update() invocation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spec_ctrl: Update MDS mitigation status after late microcode load (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spec_ctrl: Add debugfs x86/smt_present file (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spec_ctrl: Disable automatic enabling of STIBP with SMT on (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [documentation] Documentation: Add MDS vulnerability documentation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [documentation] Documentation: Move L1TF to separate directory (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Add mitigation mode VMWERV (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [base] x86/speculation/mds: Add sysfs reporting for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Add mitigation control for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [kvm] x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Clear CPU buffers on exit to user (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Add mds_clear_cpu_buffers() (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [kvm] x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Add BUG_MSBDS_ONLY (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation/mds: Add basic bug infrastructure for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/speculation: Consolidate CPU whitelists (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/msr-index: Cleanup bit defines (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/l1tf: Show actual SMT state (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/speculation: Simplify sysfs report of VMX L1TF vulnerability (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/speculation: Rework SMT state change (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [kernel] sched/smt: Expose sched_smt_present static key (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [kernel] sched/smt: Make sched_smt_present track topology (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/speculation: Disable STIBP when enhanced IBRS is in use (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spectre_v2: Make spectre_v2_mitigation mode available (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spec_ctrl: Add X86_FEATURE_USE_IBPB (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}\n- [x86] x86/spec_ctrl: Add casting to fix compilation error (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/cpu: Sanitize FAM6_ATOM naming (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}\n- [x86] x86/cpufeatures: Add Intel PCONFIG cpufeature (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-15T00:00:00", "type": "oraclelinux", "title": "kernel security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T00:00:00", "id": "ELSA-2019-1168", "href": "http://linux.oracle.com/errata/ELSA-2019-1168.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:24:25", "description": "[1.5.3-160.el7_6.2]\n- kvm-target-i386-define-md-clear-bit-rhel.patch\n- Resolves: bz#1693216\n (qemu-kvm: hardware: Microarchitectural Store Buffer Data Sampling)", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-15T00:00:00", "type": "oraclelinux", "title": "qemu-kvm security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T00:00:00", "id": "ELSA-2019-1178", "href": "http://linux.oracle.com/errata/ELSA-2019-1178.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:24:59", "description": "[4.1.12-124.26.12]\n- x86/mds: Add empty commit for CVE-2019-11091 (Konrad Rzeszutek Wilk) [Orabug: 29721935] {CVE-2019-11091}\n- x86/microcode: Add loader version file in debugfs (Boris Ostrovsky) [Orabug: 29754165] \n- x86/microcode: Fix CPU synchronization routine (Borislav Petkov) [Orabug: 29754165] \n- x86/microcode: Synchronize late microcode loading (Borislav Petkov) [Orabug: 29754165]\n[4.1.12-124.26.11]\n- x86/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- cpu/speculation: Add 'mitigations=' cmdline option (Josh Poimboeuf) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off (Konrad Rzeszutek Wilk) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Fix comment (Boris Ostrovsky) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: update mds_mitigation to reflect debugfs configuration (Mihai Carabas) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: fix microcode late loading (Mihai Carabas) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add boot option to enable MDS protection only while in idle (Boris Ostrovsky) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Improve coverage for MDS vulnerability (Boris Ostrovsky) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add SMT warning message (Josh Poimboeuf) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mds=full,nosmt cmdline option (Josh Poimboeuf) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- Documentation: Add MDS vulnerability documentation (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- Documentation: Move L1TF to separate directory (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mitigation mode VMWERV (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add debugfs for controlling MDS (Kanth Ghatraju) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add sysfs reporting for MDS (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mitigation control for MDS (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Clear CPU buffers on exit to user (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add mds_clear_cpu_buffers() (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Andi Kleen) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add BUG_MSBDS_ONLY (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation/mds: Add basic bug infrastructure for MDS (Andi Kleen) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation: Consolidate CPU whitelists (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/msr-index: Cleanup bit defines (Thomas Gleixner) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- Documentation/l1tf: Fix small spelling typo (Salvatore Bonaccorso) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}\n- x86/speculation: Simplify the CPU bug detection logic (Dominik Brodowski) [Orabug: 29526900] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-14T00:00:00", "type": "oraclelinux", "title": "Unbreakable Enterprise kernel security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-14T00:00:00", "id": "ELSA-2019-4629", "href": "http://linux.oracle.com/errata/ELSA-2019-4629.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:24:46", "description": "[4.18.0-80.1.2_0.OL8]\n- Oracle Linux certificates (Alexey Petrenko)\n- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]\n- Update x509.genkey [Orabug: 24817676]\n[4.18.0-80.1.2_0]\n- [arm64] arm64/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [s390] s390/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [powerpc] powerpc/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [powerpc] powerpc/64: Disable the speculation barrier from the command line (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add 'mitigations=' support for MDS (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [kernel] cpu/speculation: Add 'mitigations=' cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Fix comment (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add SMT warning message (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation: Move arch_smt_update() call to after mitigation decisions (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add mds=full, nosmt cmdline option (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [documentation] Documentation: Add MDS vulnerability documentation (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [documentation] Documentation: Move L1TF to separate directory (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add mitigation mode VMWERV (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add sysfs reporting for MDS (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add mitigation control for MDS (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Clear CPU buffers on exit to user (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add mds_clear_cpu_buffers() (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [kvm] x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add BUG_MSBDS_ONLY (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation/mds: Add basic bug infrastructure for MDS (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation: Consolidate CPU whitelists (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/msr-index: Cleanup bit defines (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/speculation: Cast ~SPEC_CTRL_STIBP atomic value to int (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [x86] x86/cpu: Sanitize FAM6_ATOM naming (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\nfile (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n- [tools] tools include: Adopt linux/bits.h (Josh Poimboeuf) [1698809 1698896 1699001 1690338 1690360 1690351] {CVE-2018-12130 CVE-2018-12127 CVE-2018-12126}\n[4.18.0-80.1.1_0]\n- [zstream] switch to zstream (Frantisek Hrbata)", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-07-30T00:00:00", "type": "oraclelinux", "title": "kernel security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-07-30T00:00:00", "id": "ELSA-2019-1167", "href": "http://linux.oracle.com/errata/ELSA-2019-1167.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "suse": [{"lastseen": "2022-04-18T12:42:01", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for ucode-intel fixes the following issues:\n\n This update contains the Intel QSR 2019.1 Microcode release (boo#1111331\n CVE-2018-12126 CVE-2018-12130 CVE-2018-12127 CVE-2019-11091)\n\n Release notes:\n\n - Processor Identifier Version Products\n - Model Stepping F-MO-S/PI Old->New\n - ---- new platforms ----------------------------------------\n - CLX-SP B1 6-55-7/bf 05000021 Xeon Scalable Gen2\n - ---- updated platforms ------------------------------------\n - SNB D2/G1/Q0 6-2a-7/12 0000002e->0000002f Core Gen2\n - IVB E1/L1 6-3a-9/12 00000020->00000021 Core Gen3\n - HSW C0 6-3c-3/32 00000025->00000027 Core Gen4\n - BDW-U/Y E0/F0 6-3d-4/c0 0000002b->0000002d Core Gen5\n - IVB-E/EP C1/M1/S1 6-3e-4/ed 0000042e->0000042f Core Gen3 X Series;\n Xeon E5 v2\n - IVB-EX D1 6-3e-7/ed 00000714->00000715 Xeon E7 v2\n - HSX-E/EP Cx/M1 6-3f-2/6f 00000041->00000043 Core Gen4 X series;\n Xeon E5 v3\n - HSX-EX E0 6-3f-4/80 00000013->00000014 Xeon E7 v3\n - HSW-U C0/D0 6-45-1/72 00000024->00000025 Core Gen4\n - HSW-H C0 6-46-1/32 0000001a->0000001b Core Gen4\n - BDW-H/E3 E0/G0 6-47-1/22 0000001e->00000020 Core Gen5\n - SKL-U/Y D0/K1 6-4e-3/c0 000000c6->000000cc Core Gen6\n - SKX-SP H0/M0/U0 6-55-4/b7 0200005a->0000005e Xeon Scalable\n - SKX-D M1 6-55-4/b7 0200005a->0000005e Xeon D-21xx\n - BDX-DE V1 6-56-2/10 00000019->0000001a Xeon D-1520/40\n - BDX-DE V2/3 6-56-3/10 07000016->07000017 Xeon\n D-1518/19/21/27/28/31/33/37/41/48, Pentium D1507/08/09/17/19\n - BDX-DE Y0 6-56-4/10 0f000014->0f000015 Xeon\n D-1557/59/67/71/77/81/87\n - BDX-NS A0 6-56-5/10 0e00000c->0e00000d Xeon\n D-1513N/23/33/43/53\n - APL D0 6-5c-9/03 00000036->00000038 Pentium N/J4xxx,\n Celeron N/J3xxx, Atom x5/7-E39xx\n - SKL-H/S R0/N0 6-5e-3/36 000000c6->000000cc Core Gen6; Xeon E3 v5\n - DNV B0 6-5f-1/01 00000024->0000002e Atom Processor C\n Series\n - GLK B0 6-7a-1/01 0000002c->0000002e Pentium Silver\n N/J5xxx, Celeron N/J4xxx\n - AML-Y22 H0 6-8e-9/10 0000009e->000000b4 Core Gen8 Mobile\n - KBL-U/Y H0 6-8e-9/c0 0000009a->000000b4 Core Gen7 Mobile\n - CFL-U43e D0 6-8e-a/c0 0000009e->000000b4 Core Gen8 Mobile\n - WHL-U W0 6-8e-b/d0 000000a4->000000b8 Core Gen8 Mobile\n - WHL-U V0 6-8e-d/94 000000b2->000000b8 Core Gen8 Mobile\n - KBL-G/H/S/E3 B0 6-9e-9/2a 0000009a->000000b4 Core Gen7; Xeon E3 v6\n - CFL-H/S/E3 U0 6-9e-a/22 000000aa->000000b4 Core Gen8 Desktop,\n Mobile, Xeon E\n - CFL-S B0 6-9e-b/02 000000aa->000000b4 Core Gen8\n - CFL-H/S P0 6-9e-c/22 000000a2->000000ae Core Gen9\n - CFL-H R0 6-9e-d/22 000000b0->000000b8 Core Gen9 Mobile\n\n It also contains the update to 20190312 release (boo#1129231):\n\n - Processor Identifier Version Products\n - Model Stepping F-MO-S/PI Old->New\n - ---- new platforms ----------------------------------------\n - AML-Y22 H0 6-8e-9/10 0000009e Core Gen8 Mobile\n - WHL-U W0 6-8e-b/d0 000000a4 Core Gen8 Mobile\n - WHL-U V0 6-8e-d/94 000000b2 Core Gen8 Mobile\n - CFL-S P0 6-9e-c/22 000000a2 Core Gen9 Desktop\n - CFL-H R0 6-9e-d/22 000000b0 Core Gen9 Mobile\n - ---- updated platforms ------------------------------------\n - HSX-E/EP Cx/M1 6-3f-2/6f 0000003d->00000041 Core Gen4 X series;\n Xeon E5 v3\n - HSX-EX E0 6-3f-4/80 00000012->00000013 Xeon E7 v3\n - SKX-SP H0/M0/U0 6-55-4/b7 0200004d->0000005a Xeon Scalable\n - SKX-D M1 6-55-4/b7 0200004d->0000005a Xeon D-21xx\n - BDX-DE V1 6-56-2/10 00000017->00000019 Xeon D-1520/40\n - BDX-DE V2/3 6-56-3/10 07000013->07000016 Xeon\n D-1518/19/21/27/28/31/33/37/41/48, Pentium D1507/08/09/17/19\n - BDX-DE Y0 6-56-4/10 0f000012->0f000014 Xeon\n D-1557/59/67/71/77/81/87\n - BDX-NS A0 6-56-5/10 0e00000a->0e00000c Xeon\n D-1513N/23/33/43/53\n - APL D0 6-5c-9/03 00000032->00000036 Pentium N/J4xxx,\n Celeron N/J3xxx, Atom x5/7-E39xx\n - APL E0 6-5c-a/03 0000000c->00000010 Atom x5/7-E39xx\n - GLK B0 6-7a-1/01 00000028->0000002c Pentium Silver\n N/J5xxx, Celeron N/J4xxx\n - KBL-U/Y H0 6-8e-9/c0 0000008e->0000009a Core Gen7 Mobile\n - CFL-U43e D0 6-8e-a/c0 00000096->0000009e Core Gen8 Mobile\n - KBL-H/S/E3 B0 6-9e-9/2a 0000008e->0000009a Core Gen7; Xeon E3 v6\n - CFL-H/S/E3 U0 6-9e-a/22 00000096->000000aa Core Gen8 Desktop,\n Mobile, Xeon E\n - CFL-S B0 6-9e-b/02 0000008e->000000aa Core Gen8\n\n And it also contains the update to 20180807a, no change except licensing.\n (boo#1104479).\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 42.3:\n\n zypper in -t patch openSUSE-2019-1408=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-20T00:00:00", "type": "suse", "title": "Security update for ucode-intel (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-20T00:00:00", "id": "OPENSUSE-SU-2019:1408-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/ZSE72NMUCLWUM5YDC3SFM4F3IBT36O4H/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-11-06T12:10:31", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for qemu fixes the following issues:\n\n - CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091: Added x86\n cpu feature \"md-clear\" (bsc#1111331)\n\n This update was imported from the SUSE:SLE-12-SP3: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 42.3:\n\n zypper in -t patch openSUSE-2019-1420=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-20T00:00:00", "type": "suse", "title": "Security update for qemu (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-20T00:00:00", "id": "OPENSUSE-SU-2019:1420-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/PHUAEI2S4AOFDWOX4LHSXMP4KM5BJRWS/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-04-18T12:41:57", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for libvirt fixes the following issues:\n\n Four new speculative execution information leak issues have been\n identified in Intel CPUs. (bsc#1111331)\n\n - CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)\n - CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n - CVE-2018-12130: Microarchitectural Load Port Data Sampling (MLPDS)\n - CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory\n (MDSUM)\n\n These updates contain the libvirt adjustments, that pass through the new\n 'md-clear' CPU flag (bsc#1135273).\n\n For more information on this set of vulnerabilities, check out\n https://www.suse.com/support/kb/doc/?id=7023736\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-2019-1505=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-06-03T00:00:00", "type": "suse", "title": "Security update for libvirt (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-06-03T00:00:00", "id": "OPENSUSE-SU-2019:1505-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/EXK6FJ36C5QT4K2AAY7SESWBHLXITKIA/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-04-18T12:42:01", "description": "An update that solves four vulnerabilities and has three\n fixes is now available.\n\nDescription:\n\n This update for xen fixes the following issues:\n\n Four new speculative execution information leak issues have been\n identified in Intel CPUs. (bsc#1111331)\n\n - CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)\n - CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n - CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)\n - CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory\n (MDSUM)\n\n These updates contain the XEN Hypervisor adjustments, that additionaly\n also use CPU Microcode updates.\n\n The mitigation can be controlled via the \"mds\" commandline option, see the\n documentation.\n\n For more information on this set of vulnerabilities, check out\n https://www.suse.com/support/kb/doc/?id=7023736\n\n Other fixes:\n\n - Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.\n\n The included README has details about the impact of this change\n (bsc#1120095)\n\n - Fixes in Live migrating PV domUs\n\n An earlier change broke live migration of PV domUs without a device\n model. The migration would stall for 10 seconds while the domU was paused,\n which caused network connections to drop. Fix this by tracking the need\n for a device model within libxl. (bsc#1079730, bsc#1098403, bsc#1111025)\n\n - Libvirt segfault when crash triggered on top of HVM guest (bsc#1120067)\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-2019-1403=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-16T00:00:00", "type": "suse", "title": "Security update for xen (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-16T00:00:00", "id": "OPENSUSE-SU-2019:1403-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VXQE4RWMS56TBCJGRYUPTRMOPKA4W36G/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-04-18T12:42:01", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for ucode-intel fixes the following issues:\n\n This update contains the Intel QSR 2019.1 Microcode release (bsc#1111331)\n\n Four new speculative execution information leak issues have been\n identified in Intel CPUs. (bsc#1111331)\n\n - CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)\n - CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n - CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)\n - CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory\n (MDSUM)\n\n These updates contain the CPU Microcode adjustments for the software\n mitigations.\n\n For more information on this set of vulnerabilities, check out\n https://www.suse.com/support/kb/doc/?id=7023736\n\n\n Release notes:\n\n - Processor Identifier Version Products\n - Model Stepping F-MO-S/PI Old->New\n - ---- new platforms ----------------------------------------\n - CLX-SP B1 6-55-7/bf 05000021 Xeon Scalable Gen2\n - ---- updated platforms ------------------------------------\n - SNB D2/G1/Q0 6-2a-7/12 0000002e->0000002f Core Gen2\n - IVB E1/L1 6-3a-9/12 00000020->00000021 Core Gen3\n - HSW C0 6-3c-3/32 00000025->00000027 Core Gen4\n - BDW-U/Y E0/F0 6-3d-4/c0 0000002b->0000002d Core Gen5\n - IVB-E/EP C1/M1/S1 6-3e-4/ed 0000042e->0000042f Core Gen3 X Series;\n Xeon E5 v2\n - IVB-EX D1 6-3e-7/ed 00000714->00000715 Xeon E7 v2\n - HSX-E/EP Cx/M1 6-3f-2/6f 00000041->00000043 Core Gen4 X series;\n Xeon E5 v3\n - HSX-EX E0 6-3f-4/80 00000013->00000014 Xeon E7 v3\n - HSW-U C0/D0 6-45-1/72 00000024->00000025 Core Gen4\n - HSW-H C0 6-46-1/32 0000001a->0000001b Core Gen4\n - BDW-H/E3 E0/G0 6-47-1/22 0000001e->00000020 Core Gen5\n - SKL-U/Y D0/K1 6-4e-3/c0 000000c6->000000cc Core Gen6\n - SKX-SP H0/M0/U0 6-55-4/b7 0200005a->0000005e Xeon Scalable\n - SKX-D M1 6-55-4/b7 0200005a->0000005e Xeon D-21xx\n - BDX-DE V1 6-56-2/10 00000019->0000001a Xeon D-1520/40\n - BDX-DE V2/3 6-56-3/10 07000016->07000017 Xeon\n D-1518/19/21/27/28/31/33/37/41/48, Pentium D1507/08/09/17/19\n - BDX-DE Y0 6-56-4/10 0f000014->0f000015 Xeon\n D-1557/59/67/71/77/81/87\n - BDX-NS A0 6-56-5/10 0e00000c->0e00000d Xeon\n D-1513N/23/33/43/53\n - APL D0 6-5c-9/03 00000036->00000038 Pentium N/J4xxx,\n Celeron N/J3xxx, Atom x5/7-E39xx\n - SKL-H/S R0/N0 6-5e-3/36 000000c6->000000cc Core Gen6; Xeon E3 v5\n - DNV B0 6-5f-1/01 00000024->0000002e Atom Processor C\n Series\n - GLK B0 6-7a-1/01 0000002c->0000002e Pentium Silver\n N/J5xxx, Celeron N/J4xxx\n - AML-Y22 H0 6-8e-9/10 0000009e->000000b4 Core Gen8 Mobile\n - KBL-U/Y H0 6-8e-9/c0 0000009a->000000b4 Core Gen7 Mobile\n - CFL-U43e D0 6-8e-a/c0 0000009e->000000b4 Core Gen8 Mobile\n - WHL-U W0 6-8e-b/d0 000000a4->000000b8 Core Gen8 Mobile\n - WHL-U V0 6-8e-d/94 000000b2->000000b8 Core Gen8 Mobile\n - KBL-G/H/S/E3 B0 6-9e-9/2a 0000009a->000000b4 Core Gen7; Xeon E3 v6\n - CFL-H/S/E3 U0 6-9e-a/22 000000aa->000000b4 Core Gen8 Desktop,\n Mobile, Xeon E\n - CFL-S B0 6-9e-b/02 000000aa->000000b4 Core Gen8\n - CFL-H/S P0 6-9e-c/22 000000a2->000000ae Core Gen9\n - CFL-H R0 6-9e-d/22 000000b0->000000b8 Core Gen9 Mobile\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-2019-1402=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-16T00:00:00", "type": "suse", "title": "Security update for ucode-intel (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-16T00:00:00", "id": "OPENSUSE-SU-2019:1402-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/33MA77JSUFVKUR6Z5BDK3Q5WJV5TLMGX/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-04-18T12:42:01", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for ucode-intel fixes the following issues:\n\n The Intel CPU Microcode was updated to the official QSR 2019.1 Microcode\n release (bsc#1111331 CVE-2018-12126 CVE-2018-12130 CVE-2018-12127\n CVE-2019-11091)\n\n ---- new platforms ---------------------------------------- VLV\n C0 6-37-8/02 00000838 Atom Z series VLV C0\n 6-37-8/0C 00000838 Celeron N2xxx, Pentium N35xx VLV\n D0 6-37-9/0F 0000090c Atom E38xx CHV C0\n 6-4c-3/01 00000368 Atom X series CHV D0\n 6-4c-4/01 00000411 Atom X series\n\n Readded missing in last update:\n\n BDX-ML B0/M0/R0 6-4f-1/ef 0b00002e->00000036 Xeon E5/E7 v4; Core\n i7-69xx/68xx\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-2019-1468=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-28T00:00:00", "type": "suse", "title": "Security update for ucode-intel (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-28T00:00:00", "id": "OPENSUSE-SU-2019:1468-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7TYDM6JT7REGY5GWV2QCHLGWEXWMFQXU/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2022-11-06T19:35:56", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for ucode-intel fixes the following issues:\n\n This update contains the Intel QSR 2019.1 Microcode release (bsc#1111331)\n\n Four new speculative execution information leak issues have been\n identified in Intel CPUs. (bsc#1111331)\n\n - CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)\n - CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n - CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)\n - CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory\n (MDSUM)\n\n These updates contain the CPU Microcode adjustments for the software\n mitigations.\n\n For more information on this set of vulnerabilities, check out\n https://www.suse.com/support/kb/doc/?id=7023736\n\n Release notes:\n\n ---- updated platforms ------------------------------------ SNB-E/EN/EP\n C1/M0 6-2d-6/6d 0000061d->0000061f Xeon E3/E5, Core X SNB-E/EN/EP\n C2/M1 6-2d-7/6d 00000714->00000718 Xeon E3/E5, Core X\n\n ---- new platforms ---------------------------------------- VLV\n C0 6-37-8/02 00000838 Atom Z series VLV C0\n 6-37-8/0C 00000838 Celeron N2xxx, Pentium N35xx VLV\n D0 6-37-9/0F 0000090c Atom E38xx CHV C0\n 6-4c-3/01 00000368 Atom X series CHV D0\n 6-4c-4/01 00000411 Atom X series Readded what missing in last\n update: BDX-ML B0/M0/R0 6-4f-1/ef 0b00002e->00000036 Xeon E5/E7 v4;\n Core i7-69xx/68xx\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-2019-1806=1", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-07-24T00:00:00", "type": "suse", "title": "Security update for ucode-intel (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-07-24T00:00:00", "id": "OPENSUSE-SU-2019:1806-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/C57DILLST76FNAJLKX2HCZ5LXACTE6OS/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "virtuozzo": [{"lastseen": "2021-07-28T14:20:38", "description": "This update provides a new kernel 2.6.32-042stab138.1 for Virtuozzo Containers for Linux 4.7 and Server Bare Metal 5.0 based on the RHEL 6.10 kernel 2.6.32-754.14.2.el6. The new kernel inherits security fixes for the Microarchitectural Store Buffer Data (MDS) vulnerability from the RHEL kernel.\n**Vulnerability id:** CVE-2018-12130\nA flaw was found in the implementation of the 'fill buffer', a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.\n\n**Vulnerability id:** CVE-2018-12126\nModern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.\n\n**Vulnerability id:** CVE-2018-12127\nMicroprocessors use a 'load port' subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU's pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.\n\n**Vulnerability id:** CVE-2019-11091\nUncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.\n\n", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-16T00:00:00", "type": "virtuozzo", "title": "Important kernel security update: New kernel 2.6.32-042stab138.1 for Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2019-11091", "CVE-2018-12130"], "modified": "2019-05-16T00:00:00", "id": "VZA-2019-036", "href": "https://help.virtuozzo.com/s/article/VZA-2019-036", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:20:52", "description": "This update provides a new kernel 2.6.32-042stab138.1 for Virtuozzo 6.0 based on the RHEL 6.10 kernel 2.6.32-754.14.2.el6. The new kernel inherits security fixes for the Microarchitectural Store Buffer Data (MDS) vulnerability from the RHEL kernel.\n**Vulnerability id:** CVE-2018-12130\nA flaw was found in the implementation of the 'fill buffer', a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.\n\n**Vulnerability id:** CVE-2018-12126\nModern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.\n\n**Vulnerability id:** CVE-2018-12127\nMicroprocessors use a 'load port' subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU's pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.\n\n**Vulnerability id:** CVE-2019-11091\nUncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.\n\n", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-16T00:00:00", "type": "virtuozzo", "title": "Important kernel security update: New kernel 2.6.32-042stab138.1; Virtuozzo 6.0 Update 12 Hotfix 40 (6.0.12-3739)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2019-11091", "CVE-2018-12130"], "modified": "2019-05-16T00:00:00", "id": "VZA-2019-037", "href": "https://help.virtuozzo.com/s/article/VZA-2019-037", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "checkpoint_security": [{"lastseen": "2023-03-17T06:06:01", "description": "Symptoms\n\n * Researchers have released information about several vulnerabilities in Intel processors: \nUnder certain conditions, data in microarchitectural structures that the currently-running software does not have permission to access may be speculatively accessed by faulting or assisting load or store operations. This does not result in incorrect program execution because these operations never complete, and their results are never returned to software. \nHowever, software may be able to forward this speculative-only data to a side channel disclosure gadget in a way that potentially allows malicious actors to infer the data. \nFor more information see: [Microarchitectural Data Sampling / CVE-2018-12126 , CVE-2018-12127,CVE-2018-12130,CVE-2019-11091 / INTEL-SA-00233](<https://software.intel.com/security-software-guidance/software-guidance/microarchitectural-data-sampling>)\n\nSolution\n\nThere is no added risk to Check Point appliances.\n", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T20:26:43", "type": "checkpoint_security", "title": "Check Point Response to Intel Microarchitectural Data Sampling Vulnerabilities (Fallout, RIDL, Zombieload) (CVE-2018-12126 , CVE-2018-12127, CVE-2018-12130, CVE-2019-11091)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T20:26:43", "id": "CPS:SK153672", "href": "https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk153672", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "centos": [{"lastseen": "2023-01-01T04:41:29", "description": "**CentOS Errata and Security Advisory** CESA-2019:1168\n\n\nThe kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2019-May/072789.html\n\n**Affected packages:**\nbpftool\nkernel\nkernel-abi-whitelists\nkernel-debug\nkernel-debug-devel\nkernel-devel\nkernel-doc\nkernel-headers\nkernel-tools\nkernel-tools-libs\nkernel-tools-libs-devel\nperf\npython-perf\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2019:1168", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T20:35:38", "type": "centos", "title": "bpftool, kernel, perf, python security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T20:35:38", "id": "CESA-2019:1168", "href": "https://lists.centos.org/pipermail/centos-announce/2019-May/072789.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-01-01T04:41:28", "description": "**CentOS Errata and Security Advisory** CESA-2019:1181\n\n\nKernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2019-May/072782.html\n\n**Affected packages:**\nqemu-guest-agent\nqemu-img\nqemu-kvm\nqemu-kvm-tools\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2019:1181", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T15:40:19", "type": "centos", "title": "qemu security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T15:40:19", "id": "CESA-2019:1181", "href": "https://lists.centos.org/pipermail/centos-announce/2019-May/072782.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-01-01T04:41:28", "description": "**CentOS Errata and Security Advisory** CESA-2019:1180\n\n\nThe libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2019-May/072783.html\n\n**Affected packages:**\nlibvirt\nlibvirt-client\nlibvirt-devel\nlibvirt-lock-sanlock\nlibvirt-python\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2019:1180", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T15:41:00", "type": "centos", "title": "libvirt security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T15:41:00", "id": "CESA-2019:1180", "href": "https://lists.centos.org/pipermail/centos-announce/2019-May/072783.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-01-01T04:41:29", "description": "**CentOS Errata and Security Advisory** CESA-2019:1177\n\n\nThe libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2019-May/072788.html\n\n**Affected packages:**\nlibvirt\nlibvirt-admin\nlibvirt-bash-completion\nlibvirt-client\nlibvirt-daemon\nlibvirt-daemon-config-network\nlibvirt-daemon-config-nwfilter\nlibvirt-daemon-driver-interface\nlibvirt-daemon-driver-lxc\nlibvirt-daemon-driver-network\nlibvirt-daemon-driver-nodedev\nlibvirt-daemon-driver-nwfilter\nlibvirt-daemon-driver-qemu\nlibvirt-daemon-driver-secret\nlibvirt-daemon-driver-storage\nlibvirt-daemon-driver-storage-core\nlibvirt-daemon-driver-storage-disk\nlibvirt-daemon-driver-storage-gluster\nlibvirt-daemon-driver-storage-iscsi\nlibvirt-daemon-driver-storage-logical\nlibvirt-daemon-driver-storage-mpath\nlibvirt-daemon-driver-storage-rbd\nlibvirt-daemon-driver-storage-scsi\nlibvirt-daemon-kvm\nlibvirt-daemon-lxc\nlibvirt-devel\nlibvirt-docs\nlibvirt-libs\nlibvirt-lock-sanlock\nlibvirt-login-shell\nlibvirt-nss\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2019:1177", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T20:33:30", "type": "centos", "title": "libvirt security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T20:33:30", "id": "CESA-2019:1177", "href": "https://lists.centos.org/pipermail/centos-announce/2019-May/072788.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-01-01T04:41:29", "description": "**CentOS Errata and Security Advisory** CESA-2019:1178\n\n\nKernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2019-May/072787.html\n\n**Affected packages:**\nqemu-img\nqemu-kvm\nqemu-kvm-common\nqemu-kvm-tools\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2019:1178", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-15T20:31:32", "type": "centos", "title": "qemu security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-15T20:31:32", "id": "CESA-2019:1178", "href": "https://lists.centos.org/pipermail/centos-announce/2019-May/072787.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "fedora": [{"lastseen": "2021-07-28T14:46:51", "description": "This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor ", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-07-01T01:09:24", "type": "fedora", "title": "[SECURITY] Fedora 30 Update: xen-4.11.1-6.fc30", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-07-01T01:09:24", "id": "FEDORA:609B763560C6", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/POJUMDAYVYNIEBIUI7KEK5PZGXRPMER4/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:46:51", "description": "QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: * Full system emulation. In this mode, QEMU emulates a full system (for example a PC), including a processor and various peripherials. It can be used to launch different Operating Systems without rebooting the PC or to debug system code. * User mode emulation. In this mode, QEMU can launch Linux processes compi led for one CPU on another CPU. As QEMU requires no host kernel patches to run, it is safe and easy to use. ", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-17T01:08:38", "type": "fedora", "title": "[SECURITY] Fedora 30 Update: qemu-3.1.0-8.fc30", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-17T01:08:38", "id": "FEDORA:CFE4360D22F6", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/Y5FN3EW4TD5ZVVHRJTLXZKQIV75IVGZ5/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:46:51", "description": "Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). The main package includes the libvirtd server exporting the virtualization support. ", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-17T01:08:36", "type": "fedora", "title": "[SECURITY] Fedora 30 Update: libvirt-5.1.0-5.fc30", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-17T01:08:36", "id": "FEDORA:9833860D22D9", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/JA5T2KLIYRYX4XMARLFBPB45B2INDALL/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2021-07-28T14:46:51", "description": "This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor ", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-18T01:05:01", "type": "fedora", "title": "[SECURITY] Fedora 30 Update: xen-4.11.1-5.fc30", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-18T01:05:01", "id": "FEDORA:E197860874D7", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/RREVXTDNJJBRYC7JCONG5O3AQGOUE6IO/", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "citrix": [{"lastseen": "2021-07-28T14:33:59", "description": "<section class=\"article-content\" data-swapid=\"ArticleContent\">\n<div class=\"content-block\" data-swapid=\"ContentBlock\"><div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"DescriptionofProblem\"> Description of Problem</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<p>A number of security issues have been identified in certain CPU hardware that may allow unprivileged code running on a CPU core to infer the value of memory data belonging to other processes, virtual machines or the hypervisor that are, or have recently been, running on the same CPU core.</p>\n<p>These issues have the following identifiers:</p>\n<p>\u2022 CVE-2018-12126: Microarchitectural Store Buffer Data Sampling</p>\n<p>\u2022 CVE-2018-12127: Microarchitectural Load Port Data Sampling</p>\n<p>\u2022 CVE-2018-12130: Microarchitectural Fill Buffer Data Sampling</p>\n<p>\u2022 CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory</p>\n<p>Although these are not vulnerabilities in the Citrix Hypervisor (formerly Citrix XenServer) product, this bulletin and associated hotfixes provides assistance in mitigating these CPU issues.</p>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"MitigatingFactors\"> Mitigating Factors</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<p>Customers with AMD CPUs are believed to be unaffected by these issues.</p>\n<p>Some Intel CPUs are believed to be unaffected by these issues. A list of affected Intel CPUs is expected to be made available at <a href=\"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html\">https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html</a></p>\n<p>Identification of the specific CPU(s) present on a Citrix Hypervisor machine may be obtained by typing the command</p>\n<p> <i>grep \u201cmodel name\u201d /proc/cpuinfo</i></p>\n<p>in the Dom0 console.</p>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"WhatCustomersShouldDo\"> What Customers Should Do</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<p>Full mitigation of these issues for systems with vulnerable CPUs requires all of:</p>\n<ol>\n<li>Updates to Citrix Hypervisor</li>\n<li>Updates to the CPU microcode</li>\n<li>Disabling CPU hyper-threading (also known as simultaneous multi-threading)</li>\n</ol>\n<p> </p>\n<p>In addition, updates to guest operating systems may be required to protect guest VMs from code running within that same VM. Guest VMs will need to be stopped and started (rather than rebooted) to fully mitigate these issues within the guest VM. Customers are advised to follow their operating system provider\u2019s recommendations. Likewise, updates to the host system firmware (\u201cBIOS updates\u201d) may be required and Citrix recommends that you follow the guidance of your hardware vendor for any updates that they may provide.</p>\n<p> <u>Updates to Citrix Hypervisor</u></p>\n<p>Citrix has released hotfixes that contain mitigations for these CPU issues. These hotfixes can be found on the Citrix website at the following locations:</p>\n<p>Citrix Hypervisor 8.0: CTX250041 \u2013 <a href=\"https://support.citrix.com/article/CTX250041\">https://support.citrix.com/article/CTX250041</a></p>\n<p>Citrix XenServer 7.6: CTX250040 \u2013 <a href=\"https://support.citrix.com/article/CTX250040\">https://support.citrix.com/article/CTX250040</a></p>\n<p>Citrix XenServer 7.1 LTSR CU2: CTX250039 \u2013 <a href=\"https://support.citrix.com/article/CTX250039\">https://support.citrix.com/article/CTX250039</a></p>\n<p>Citrix XenServer 7.0: CTX250038 \u2013 <a href=\"https://support.citrix.com/article/CTX250038\">https://support.citrix.com/article/CTX250038</a></p>\n<p> <u>Updates to the CPU microcode</u></p>\n<p>The hotfixes released with this bulletin contain microcode for all supported CPU models for which Intel has presently made updates available. This microcode will be automatically applied each time the system boots. Any further microcode updates may be installed by means of system firmware updates (\u201cBIOS updates\u201d) and Citrix strongly recommends that you follow the guidance of your hardware vendor for any updates that they may provide.</p>\n<p>CPUs that are vulnerable to these issues, and for which the CPU manufacturer has not provided microcode updates, will not have full mitigation of these issues.</p>\n<p>Once the hotfix has been applied, customers with vulnerable CPUs can determine if the microcode required to mitigate these issues has been loaded into the CPU by typing the command</p>\n<p> <i>xl dmesg | grep \u201cHardware features:\u201d</i></p>\n<p>in the Dom0 console shortly after the host has rebooted to apply the hotfix. If the output includes the text MD_CLEAR, updated microcode is present.</p>\n<p> <u>Disabling CPU hyper-threading</u></p>\n<p>Mitigation of these issues requires disabling hyper-threading on vulnerable CPUs. Customers should evaluate their workload and determine if the mitigation of disabling hyper-threading is required in their environment, and to understand the performance impact of this mitigation. Citrix recommends disabling hyper-threading in deployments with untrusted workloads. The following document provides the steps to disable hyper-threading via the Xen command line: <a href=\"https://support.citrix.com/article/CTX237190\">https://support.citrix.com/article/CTX237190</a></p>\n<p>Note that disabling hyper-threading will result in the number of available pCPUs being reduced and is likely to adversely impact performance. The following document covers additional issues that may be encountered in environments where customers have over-provisioned or pinned pCPUs (for example when hyper-threads are disabled): <a href=\"https://support.citrix.com/article/CTX236977\">https://support.citrix.com/article/CTX236977</a></p>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"WhatCitrixIsDoing\"> What Citrix Is Doing</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<div>\n<div>\n<p>Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at <u> <a href=\"http://support.citrix.com/\">http://support.citrix.com/</a></u>.</p>\n</div>\n</div>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"ObtainingSupportonThisIssue\"> Obtaining Support on This Issue</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<div>\n<div>\n<p>If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at <u> <a href=\"https://www.citrix.com/support/open-a-support-case.html\">https://www.citrix.com/support/open-a-support-case.html</a></u>. </p>\n</div>\n</div>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"ReportingSecurityVulnerabilities\"> Reporting Security Vulnerabilities</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<div>\n<div>\n<p>Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 \u2013 <a href=\"http://support.citrix.com/article/CTX081743\">Reporting Security Issues to Citrix</a></p>\n</div>\n</div>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n<div>\n<!--googleoff: all-->\n<h2 id=\"Changelog\"> Changelog</h2>\n<!--googleon: all-->\n<div>\n<div>\n<div>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"0\" width=\"100%\">\n<tbody>\n<tr>\n<td>Date </td>\n<td>Change</td>\n</tr>\n<tr>\n<td>14th May 2019</td>\n<td>Initial publication</td>\n</tr>\n<tr>\n<td>16th May 2019</td>\n<td>Added additional hotfixes and included guidance on restarting guest VMs</td>\n</tr>\n</tbody>\n</table>\n</div>\n</div>\n</div>\n<!--googleoff: all-->\n<hr/>\n</div>\n</div></div>\n</section>", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.6, "privilegesRequired": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 4.0}, "published": "2019-05-14T04:00:00", "type": "citrix", "title": "Citrix Hypervisor Security Update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-16T04:00:00", "id": "CTX251995", "href": "https://support.citrix.com/article/CTX251995", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "amazon": [{"lastseen": "2023-02-08T17:38:26", "description": "**Issue Overview:**\n\n\\- Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126) \n\\- Microarchitectural Fill Buffer Data Sampling (MFBDS) (CVE-2018-12130) \n\\- Microarchitectural Load Port Data Sampling (MLPDS) (CVE-2018-12127) \n\\- Microarchitectural Data Sampling Uncacheable Memory (MDSUM) (CVE-2019-11091) \n \nMSBDS leaks Store Buffer Entries which can be speculatively forwarded to a dependent load (store-to-load forwarding) as an optimization. The forward can also happen to a faulting or assisting load operation for a different memory address, which can cause an issue under certain conditions. Store buffers are partitioned between Hyper-Threads so cross thread forwarding is not possible. But if a thread enters or exits a sleep state the store buffer is repartitioned which can expose data from one thread to the other.\n\nMFBDS leaks Fill Buffer Entries. Fill buffers are used internally to manage L1 miss situations and to hold data which is returned or sent in response to a memory or I/O operation. Fill buffers can forward data to a load operation and also write data to the cache. When the fill buffer is deallocated it can retain the stale data of the preceding operations which can then be forwarded to a faulting or assisting load operation, which can be cause an issue under certain conditions. Fill buffers are shared between Hyper-Threads so cross thread leakage is possible.\n\nMLDPS leaks Load Port Data. Load ports are used to perform load operations from memory or I/O. The received data is then forwarded to the register file or a subsequent operation. In some implementations the Load Port can contain stale data from a previous operation which can be forwarded to faulting or assisting loads under certain conditions, which again can be cause an issue eventually. Load ports are shared between Hyper-Threads so cross thread leakage is possible.\n\n \n**Affected Packages:** \n\n\nkernel\n\n \n**Issue Correction:** \nRun _yum update kernel_ and reboot your instance to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n aarch64: \n \u00a0\u00a0\u00a0 kernel-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-aarch64-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 perf-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 python-perf-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 python-perf-debuginfo-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.114-105.126.amzn2.aarch64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.114-105.126.amzn2.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 kernel-headers-4.14.114-105.126.amzn2.i686 \n \n src: \n \u00a0\u00a0\u00a0 kernel-4.14.114-105.126.amzn2.src \n \n x86_64: \n \u00a0\u00a0\u00a0 kernel-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-x86_64-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 perf-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 python-perf-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 python-perf-debuginfo-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.114-105.126.amzn2.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.114-105.126.amzn2.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2018-12126](<https://access.redhat.com/security/cve/CVE-2018-12126>), [CVE-2018-12127](<https://access.redhat.com/security/cve/CVE-2018-12127>), [CVE-2018-12130](<https://access.redhat.com/security/cve/CVE-2018-12130>), [CVE-2019-11091](<https://access.redhat.com/security/cve/CVE-2019-11091>)\n\nMitre: [CVE-2018-12126](<https://vulners.com/cve/CVE-2018-12126>), [CVE-2018-12127](<https://vulners.com/cve/CVE-2018-12127>), [CVE-2018-12130](<https://vulners.com/cve/CVE-2018-12130>), [CVE-2019-11091](<https://vulners.com/cve/CVE-2019-11091>)\n", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-07T22:39:00", "type": "amazon", "title": "Important: kernel", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-14T23:06:00", "id": "ALAS2-2019-1205", "href": "https://alas.aws.amazon.com/AL2/ALAS-2019-1205.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-02-08T17:13:02", "description": "**Issue Overview:**\n\n\\- Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126) \n\\- Microarchitectural Fill Buffer Data Sampling (MFBDS) (CVE-2018-12130) \n\\- Microarchitectural Load Port Data Sampling (MLPDS) (CVE-2018-12127) \n\\- Microarchitectural Data Sampling Uncacheable Memory (MDSUM) (CVE-2019-11091) \n \nMSBDS leaks Store Buffer Entries which can be speculatively forwarded to a dependent load (store-to-load forwarding) as an optimization. The forward can also happen to a faulting or assisting load operation for a different memory address, which can cause an issue under certain conditions. Store buffers are partitioned between Hyper-Threads so cross thread forwarding is not possible. But if a thread enters or exits a sleep state the store buffer is repartitioned which can expose data from one thread to the other.\n\nMFBDS leaks Fill Buffer Entries. Fill buffers are used internally to manage L1 miss situations and to hold data which is returned or sent in response to a memory or I/O operation. Fill buffers can forward data to a load operation and also write data to the cache. When the fill buffer is deallocated it can retain the stale data of the preceding operations which can then be forwarded to a faulting or assisting load operation, which can cause an issue under certain conditions. Fill buffers are shared between Hyper-Threads so cross thread leakage is possible.\n\nMLDPS leaks Load Port Data. Load ports are used to perform load operations from memory or I/O. The received data is then forwarded to the register file or a subsequent operation. In some implementations the Load Port can contain stale data from a previous operation which can be forwarded to faulting or assisting loads under certain conditions, which again can cause an issue eventually. Load ports are shared between Hyper-Threads so cross thread leakage is possible.\n\n \n**Affected Packages:** \n\n\nkernel\n\n \n**Issue Correction:** \nRun _yum update kernel_ and reboot your instance to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-i686-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 kernel-4.14.114-83.126.amzn1.i686 \n \u00a0\u00a0\u00a0 perf-4.14.114-83.126.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 kernel-4.14.114-83.126.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 kernel-debuginfo-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-devel-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-debuginfo-common-x86_64-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-headers-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 perf-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 perf-debuginfo-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-devel-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-tools-debuginfo-4.14.114-83.126.amzn1.x86_64 \n \u00a0\u00a0\u00a0 kernel-4.14.114-83.126.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2018-12126](<https://access.redhat.com/security/cve/CVE-2018-12126>), [CVE-2018-12127](<https://access.redhat.com/security/cve/CVE-2018-12127>), [CVE-2018-12130](<https://access.redhat.com/security/cve/CVE-2018-12130>), [CVE-2019-11091](<https://access.redhat.com/security/cve/CVE-2019-11091>)\n\nMitre: [CVE-2018-12126](<https://vulners.com/cve/CVE-2018-12126>), [CVE-2018-12127](<https://vulners.com/cve/CVE-2018-12127>), [CVE-2018-12130](<https://vulners.com/cve/CVE-2018-12130>), [CVE-2019-11091](<https://vulners.com/cve/CVE-2019-11091>)\n", "cvss3": {"exploitabilityScore": 1.1, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.6, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2019-05-07T22:54:00", "type": "amazon", "title": "Important: kernel", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.7, "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091"], "modified": "2019-05-14T23:05:00", "id": "ALAS-2019-1205", "href": "https://alas.aws.amazon.com/ALAS-2019-1205.html", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}], "nessus": [{"lastseen": "2023-02-10T14:54:58", "description": "An update for qemu-kvm is now available for Red Hat Enterprise Linux 6.\n\nRed Hat Product Security has rated this update as having a security impact of Important. 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The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a aEUR~load portaEURtm subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPUaEURtms pipelines.\nStale load operations results are stored in the 'load port' table until overwritten by newer operations. 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Security Bulletin: IBM Security QRadar Packet Capture is vulnerable to Intel Microarchitectural Data Sampling (MDS) Vulnerabilites (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091)
