rhsa-2015_1740
Vulnerability from csaf_redhat
Published
2015-09-07 15:49
Modified
2024-11-14 15:29
Summary
Red Hat Security Advisory: qemu-kvm-rhev security fix update

Notes

Topic
Updated qemu-kvm-rhev packages that fix one security issue and one bug are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. An information leak flaw was found in the way QEMU's RTL8139 emulation implementation processed network packets under RTL8139 controller's C+ mode of operation. An unprivileged guest user could use this flaw to read up to 65 KB of uninitialized QEMU heap memory. (CVE-2015-5165) Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Donghai Zhu of Alibaba as the original reporter. All users of qemu-kvm-rhev are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After 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.
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.


To clipboard 

{
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      "text": "Moderate"
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    "category": "csaf_security_advisory",
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    "distribution": {
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        "category": "summary",
        "text": "Updated qemu-kvm-rhev packages that fix one security issue and one bug are\nnow available for Red Hat Enterprise Virtualization.\n\nRed Hat Product Security has rated this update as having Moderate security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences 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-rhev package provides the\nuser-space component for running virtual machines using KVM in environments\nmanaged by Red Hat Enterprise Virtualization Manager.\n\nAn information leak flaw was found in the way QEMU\u0027s RTL8139 emulation\nimplementation processed network packets under RTL8139 controller\u0027s C+ mode\nof operation. An unprivileged guest user could use this flaw to read up to\n65 KB of uninitialized QEMU heap memory. (CVE-2015-5165)\n\nRed Hat would like to thank the Xen project for reporting this issue.\nUpstream acknowledges Donghai Zhu of Alibaba as the original reporter.\n\nAll users of qemu-kvm-rhev are advised to upgrade to these updated\npackages, which contain a backported patch to correct this issue. After\ninstalling this update, shut down all running virtual machines. Once all\nvirtual machines have shut down, start them again for this update to take\neffect.",
        "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"
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    "title": "Red Hat Security Advisory: qemu-kvm-rhev security fix update",
    "tracking": {
      "current_release_date": "2024-11-14T15:29:12+00:00",
      "generator": {
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Xen project"
          ]
        },
        {
          "names": [
            "Donghai Zhu"
          ],
          "organization": "Alibaba",
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2015-5165",
      "cwe": {
        "id": "CWE-456",
        "name": "Missing Initialization of a Variable"
      },
      "discovery_date": "2015-07-14T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1248760"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An information leak flaw was found in the way QEMU\u0027s RTL8139 emulation implementation processed network packets under RTL8139 controller\u0027s C+ mode of operation. An unprivileged guest user could use this flaw to read up to 65 KB of uninitialized QEMU heap memory.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.\n\nThis issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.\n\nThis issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.\n\nThis issue affects the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.\n\nRed Hat Enterprise Linux 5 is now in Production 3 Phase of the support and\nmaintenance life cycle. This has been rated as having Moderate security\nimpact and is not currently planned to be addressed in future updates. For\nadditional information, refer to the Red Hat Enterprise Linux Life\nCycle: https://access.redhat.com/support/policy/updates/errata/",
          "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": [
          "6Server-RHEV-Agents:qemu-img-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
          "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.src",
          "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
          "6Server-RHEV-Agents:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.479.el6_7.1.x86_64",
          "6Server-RHEV-Agents:qemu-kvm-rhev-tools-2:0.12.1.2-2.479.el6_7.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2015-5165"
        },
        {
          "category": "external",
          "summary": "RHBZ#1248760",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1248760"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-5165",
          "url": "https://www.cve.org/CVERecord?id=CVE-2015-5165"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-5165",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5165"
        },
        {
          "category": "external",
          "summary": "http://xenbits.xen.org/xsa/advisory-140.html",
          "url": "http://xenbits.xen.org/xsa/advisory-140.html"
        }
      ],
      "release_date": "2015-08-03T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2015-09-07T15:49:19+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "6Server-RHEV-Agents:qemu-img-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.src",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-tools-2:0.12.1.2-2.479.el6_7.1.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2015:1740"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "products": [
            "6Server-RHEV-Agents:qemu-img-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.src",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.479.el6_7.1.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-tools-2:0.12.1.2-2.479.el6_7.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)"
    }
  ]
}


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