{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright © 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-rhev is now available for Red Hat OpenStack Platform\n10.\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for\nLinux on a variety of architectures. The qemu-kvm-rhev packages provide the\nuser-space component for running virtual machines that use KVM in\nenvironments managed by Red Hat products.\n\nSecurity fix(es):\n* An industry-wide issue was found in the way many modern microprocessor\ndesigns have implemented speculative execution of Load & Store instructions\n(a commonly used performance optimization). It relies on the presence of a\nprecisely-defined instruction sequence in the privileged code as well as\nthe fact that memory read from address to which a recent memory write has\noccurred may see an older value and subsequently cause an update into the\nmicroprocessor's data cache even for speculatively executed instructions\nthat never actually commit (retire). As a result, an unprivileged attacker\ncould use this flaw to read privileged memory by conducting targeted cache\nside-channel attacks. (CVE-2018-3639)\n\nAcknowledgements:\n\nRed Hat would like to thank Ken Johnson (Microsoft Security Response Center)\nand Jann Horn (Google Project Zero) for reporting this issue.\n\nNote: This is the qemu-kvm-rhev side of the CVE-2018-3639 mitigation that\nincludes support for guests running on hosts with AMD processors.\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, and other related information, refer to the CVE page(s) listed in\nthe References section.", "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-2018:2289", "url": "https://access.redhat.com/errata/RHSA-2018:2289" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1566890", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1566890" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_2289.json" } ], "title": "Red Hat Security Advisory: qemu-kvm-rhev security update", "tracking": { "current_release_date": "2025-11-21T18:05:39+00:00", "generator": { "date": "2025-11-21T18:05:39+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.6.12" } }, "id": "RHSA-2018:2289", "initial_release_date": "2018-07-30T17:40:24+00:00", "revision_history": [ { "date": "2018-07-30T17:40:24+00:00", "number": "1", "summary": "Initial version" }, { "date": "2018-07-30T17:40:24+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2025-11-21T18:05:39+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat OpenStack Platform 10.0", "product": { "name": "Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0", "product_identification_helper": { "cpe": "cpe:/a:redhat:openstack:10::el7" } } } ], "category": "product_family", "name": "Red Hat OpenStack Platform" }, { "branches": [ { "category": "product_version", "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "product": { "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_id": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-kvm-rhev@2.10.0-21.el7_5.4?arch=x86_64&epoch=10" } } }, { "category": "product_version", "name": "qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64", "product": { "name": "qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_id": "qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-kvm-tools-rhev@2.10.0-21.el7_5.4?arch=x86_64&epoch=10" } } }, { "category": "product_version", "name": "qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "product": { "name": "qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_id": "qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-kvm-common-rhev@2.10.0-21.el7_5.4?arch=x86_64&epoch=10" } } }, { "category": "product_version", "name": "qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "product": { "name": "qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "product_id": "qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-kvm-rhev-debuginfo@2.10.0-21.el7_5.4?arch=x86_64&epoch=10" } } }, { "category": "product_version", "name": "qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "product": { "name": "qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_id": "qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-img-rhev@2.10.0-21.el7_5.4?arch=x86_64&epoch=10" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "product": { "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "product_id": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/qemu-kvm-rhev@2.10.0-21.el7_5.4?arch=src&epoch=10" } } } ], "category": "architecture", "name": "src" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64 as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64" }, "product_reference": "qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64 as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64" }, "product_reference": "qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src" }, "product_reference": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64 as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64" }, "product_reference": "qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64 as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64" }, "product_reference": "qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64 as a component of Red Hat OpenStack Platform 10.0", "product_id": "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64" }, "product_reference": "qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64", "relates_to_product_reference": "7Server-RH7-RHOS-10.0" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Jann Horn" ], "organization": "Google Project Zero" }, { "names": [ "Ken Johnson" ], "organization": "Microsoft Security Response Center" } ], "cve": "CVE-2018-3639", "cwe": { "id": "CWE-200", "name": "Exposure of Sensitive Information to an Unauthorized Actor" }, "discovery_date": "2018-03-12T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1566890" } ], "notes": [ { "category": "description", "text": "An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks.", "title": "Vulnerability description" }, { "category": "summary", "text": "hw: cpu: speculative store bypass", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/ssbd", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2018-3639" }, { "category": "external", "summary": "RHBZ#1566890", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1566890" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2018-3639", "url": "https://www.cve.org/CVERecord?id=CVE-2018-3639" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-3639", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-3639" }, { "category": "external", "summary": "https://access.redhat.com/security/vulnerabilities/ssbd", "url": "https://access.redhat.com/security/vulnerabilities/ssbd" }, { "category": "external", "summary": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1528", "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1528" }, { "category": "external", "summary": "https://software.intel.com/sites/default/files/managed/b9/f9/336983-Intel-Analysis-of-Speculative-Execution-Side-Channels-White-Paper.pdf", "url": "https://software.intel.com/sites/default/files/managed/b9/f9/336983-Intel-Analysis-of-Speculative-Execution-Side-Channels-White-Paper.pdf" }, { "category": "external", "summary": "https://software.intel.com/sites/default/files/managed/c5/63/336996-Speculative-Execution-Side-Channel-Mitigations.pdf", "url": "https://software.intel.com/sites/default/files/managed/c5/63/336996-Speculative-Execution-Side-Channel-Mitigations.pdf" }, { "category": "external", "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html", "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html" } ], "release_date": "2018-05-21T21:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2018-07-30T17:40:24+00:00", "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2018:2289" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.0" }, "products": [ "7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.src", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.10.0-21.el7_5.4.x86_64", "7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.10.0-21.el7_5.4.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "hw: cpu: speculative store bypass" } ] }