rhsa-2020_0666
Vulnerability from csaf_redhat
Published
2020-03-03 15:24
Modified
2024-11-15 03:21
Summary
Red Hat Security Advisory: qemu-kvm security and enhancement update
Notes
Topic
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Kernel-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.
Security Fix(es):
* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)
For 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.
Enhancement(s):
* [Intel 7.8 FEAT] MDS_NO exposure to guest - qemu-kvm (BZ#1755332)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "Kernel-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* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)\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\nEnhancement(s):\n\n* [Intel 7.8 FEAT] MDS_NO exposure to guest - qemu-kvm (BZ#1755332)", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:0666", "url": "https://access.redhat.com/errata/RHSA-2020:0666" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "https://access.redhat.com/solutions/tsx-asynchronousabort", "url": "https://access.redhat.com/solutions/tsx-asynchronousabort" }, { "category": "external", "summary": "1753062", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1753062" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_0666.json" } ], "title": "Red Hat Security Advisory: qemu-kvm security and enhancement update", "tracking": { "current_release_date": "2024-11-15T03:21:07+00:00", "generator": { "date": "2024-11-15T03:21:07+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2020:0666", "initial_release_date": "2020-03-03T15:24:38+00:00", "revision_history": [ { "date": "2020-03-03T15:24:38+00:00", "number": "1", "summary": "Initial version" }, { "date": "2020-03-03T15:24:38+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-15T03:21:07+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, 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"product_reference": "qemu-kvm-10:1.5.3-160.el7_6.5.src", "relates_to_product_reference": "7Server-7.6.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-10:1.5.3-160.el7_6.5.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)", "product_id": "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64" }, "product_reference": "qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "relates_to_product_reference": "7Server-7.6.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)", "product_id": "7Server-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64" }, "product_reference": "qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "relates_to_product_reference": "7Server-7.6.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)", "product_id": "7Server-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64" }, "product_reference": "qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "relates_to_product_reference": "7Server-7.6.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)", "product_id": "7Server-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64" }, "product_reference": "qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64", "relates_to_product_reference": "7Server-7.6.EUS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Intel" ] } ], "cve": "CVE-2019-11135", "cwe": { "id": "CWE-203", "name": "Observable Discrepancy" }, "discovery_date": "2019-09-18T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1753062" } ], "notes": [ { "category": "description", "text": "A flaw was found in the way Intel CPUs handle speculative execution of instructions when the TSX Asynchronous Abort (TAA) error occurs. A local authenticated attacker with the ability to monitor execution times could infer the TSX memory state by comparing abort execution times. This could allow information disclosure via this observed side-channel for any TSX transaction being executed while an attacker is able to observe abort timing.\r\n\r\nIntel\u0027s Transactional Synchronisation Extensions (TSX) are set of instructions which enable transactional memory support to improve performance of the multi-threaded applications, in the lock-protected critical sections. The CPU executes instructions in the critical-sections as transactions, while ensuring their atomic state. When such transaction execution is unsuccessful, the processor cannot ensure atomic updates to the transaction memory, so the processor rolls back or aborts such transaction execution.\r\n\r\nWhile TSX Asynchronous Abort (TAA) is pending, CPU may continue to read data from architectural buffers and pass it to the dependent speculative operations. This may cause information leakage via speculative side-channel means, which is quite similar to the Microarchitectural Data Sampling (MDS) issue.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: TSX Transaction Asynchronous Abort (TAA)", "title": "Vulnerability summary" }, { "category": "other", "text": "libvirt and qemu-kvm on Red Hat Enterprise Linux 6 are not affected by this vulnerability as they do not support MSR-based CPU features.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7ComputeNode-optional-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2019-11135" }, { "category": "external", "summary": "RHBZ#1753062", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1753062" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2019-11135", "url": "https://www.cve.org/CVERecord?id=CVE-2019-11135" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11135", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11135" }, { "category": "external", "summary": "https://access.redhat.com/solutions/tsx-asynchronousabort", "url": "https://access.redhat.com/solutions/tsx-asynchronousabort" }, { "category": "external", "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00270.html", "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00270.html" } ], "release_date": "2019-11-12T18:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-03-03T15:24:38+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.", "product_ids": [ "7ComputeNode-optional-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2020:0666" }, { "category": "workaround", "details": "For mitigation related information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/solutions/tsx-asynchronousabort", "product_ids": [ "7ComputeNode-optional-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0" }, "products": [ "7ComputeNode-optional-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7ComputeNode-optional-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7ComputeNode-optional-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-img-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.src", "7Server-7.6.EUS:qemu-kvm-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-common-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-debuginfo-10:1.5.3-160.el7_6.5.x86_64", "7Server-7.6.EUS:qemu-kvm-tools-10:1.5.3-160.el7_6.5.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "hw: TSX Transaction Asynchronous Abort (TAA)" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.