{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "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": "Updated qemu-kvm packages that fix two security issues and three bugs are\nnow available for Red Hat Enterprise Linux 6.\n\nRed Hat Product Security has rated this update as having Moderate security\nimpact. Common Vulnerability Scoring System (CVSS) base scores, which give\ndetailed severity ratings, are available for each vulnerability from the\nCVE links in the References section.", "title": "Topic" }, { "category": "general", "text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for\nLinux on AMD64 and Intel 64 systems. The qemu-kvm package provides the\nuser-space component for running virtual machines using KVM.\n\nTwo integer overflow flaws were found in the QEMU block driver for QCOW\nversion 1 disk images. A user able to alter the QEMU disk image files\nloaded by a guest could use either of these flaws to corrupt QEMU process\nmemory on the host, which could potentially result in arbitrary code\nexecution on the host with the privileges of the QEMU process.\n(CVE-2014-0222, CVE-2014-0223)\n\nRed Hat would like to thank NSA for reporting these issues.\n\nThis update also fixes the following bugs:\n\n* In certain scenarios, when performing live incremental migration, the\ndisk size could be expanded considerably due to the transfer of unallocated\nsectors past the end of the base image. With this update, the\nbdrv_is_allocated() function has been fixed to no longer return \"True\" for\nunallocated sectors, and the disk size no longer changes after performing\nlive incremental migration. (BZ#1109715)\n\n* This update enables ioeventfd in virtio-scsi-pci. This allows QEMU to\nprocess I/O requests outside of the vCPU thread, reducing the latency of\nsubmitting requests and improving single task throughput. (BZ#1123271)\n\n* Prior to this update, vendor-specific SCSI commands issued from a KVM\nguest did not reach the target device due to QEMU considering such commands\nas invalid. This update fixes this bug by properly propagating\nvendor-specific SCSI commands to the target device. (BZ#1125131)\n\nAll qemu-kvm users are advised to upgrade to these updated packages, which\ncontain backported patches to correct these issues. After installing this\nupdate, shut down all running virtual machines. Once all virtual machines\nhave shut down, start them again for this update to take effect.", "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-2014:1075", "url": "https://access.redhat.com/errata/RHSA-2014:1075" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "1097216", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1097216" }, { "category": "external", "summary": "1097222", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1097222" }, { "category": "external", "summary": "1109715", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1109715" }, { "category": "external", "summary": "1123271", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1123271" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2014/rhsa-2014_1075.json" } ], "title": "Red Hat Security Advisory: qemu-kvm security and bug fix update", "tracking": { "current_release_date": "2026-06-27T11:15:39+00:00", "generator": { "date": "2026-06-27T11:15:39+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.2.6" } }, "id": "RHSA-2014:1075", "initial_release_date": "2014-08-19T09:12:19+00:00", "revision_history": [ { "date": "2014-08-19T09:12:19+00:00", "number": "1", "summary": "Initial version" }, { "date": "2014-08-19T09:12:19+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2026-06-27T11:15:39+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux Desktop (v. 6)", "product": { "name": "Red Hat Enterprise Linux Desktop (v. 6)", "product_id": "6Client-6.5.z", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6::client" } } }, { "category": "product_name", "name": "Red Hat Enterprise Linux HPC Node (v. 6)", "product": { "name": "Red Hat Enterprise Linux HPC Node (v. 6)", "product_id": "6ComputeNode-6.5.z", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6::computenode" } } }, { "category": "product_name", "name": "Red Hat Enterprise Linux Server (v. 6)", "product": { "name": "Red Hat Enterprise Linux Server (v. 6)", "product_id": "6Server-6.5.z", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6::server" } } 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"text": "1097222" } ], "notes": [ { "category": "description", "text": "An integer overflow flaw was found in the QEMU block driver for QCOW version 1 disk images. A user able to alter the QEMU disk image files loaded by a guest could use this flaw to corrupt QEMU process memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.", "title": "Vulnerability description" }, { "category": "summary", "text": "Qemu: qcow1: validate image size to avoid out-of-bounds memory access", "title": "Vulnerability summary" }, { "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": [ "6Client-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.i686", "6Client-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Client-6.5.z:qemu-img-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Client-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.src", "6Client-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Client-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.i686", "6Client-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Client-6.5.z:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.14.x86_64", "6ComputeNode-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.x86_64", "6ComputeNode-6.5.z:qemu-img-2:0.12.1.2-2.415.el6_5.14.x86_64", "6ComputeNode-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.src", "6ComputeNode-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.x86_64", "6ComputeNode-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.x86_64", "6ComputeNode-6.5.z:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Server-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.i686", "6Server-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Server-6.5.z:qemu-img-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Server-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.src", "6Server-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Server-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.i686", "6Server-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Server-6.5.z:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Workstation-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.i686", "6Workstation-6.5.z:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Workstation-6.5.z:qemu-img-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Workstation-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.src", "6Workstation-6.5.z:qemu-kvm-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Workstation-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.i686", "6Workstation-6.5.z:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.14.x86_64", "6Workstation-6.5.z:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.14.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2014-0223" }, { "category": "external", "summary": "RHBZ#1097222", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1097222" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2014-0223", "url": "https://www.cve.org/CVERecord?id=CVE-2014-0223" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-0223", "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-0223" } ], "release_date": "2014-05-12T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2014-08-19T09:12:19+00:00", "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. 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