rhsa-2015_2065
Vulnerability from csaf_redhat
Published
2015-11-16 18:57
Modified
2024-11-05 19:04
Summary
Red Hat Security Advisory: xen security update

Notes

Topic
Updated xen packages that fix one security issue are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Important 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
The xen packages contain administration tools and the xend service for managing the kernel-xen kernel for virtualization on Red Hat Enterprise Linux. A heap buffer overflow flaw was found in the way QEMU's NE2000 NIC emulation implementation handled certain packets received over the network. A privileged user inside a guest could use this flaw to crash the QEMU instance (denial of service) or potentially execute arbitrary code on the host. (CVE-2015-5279) Red Hat would like to thank Qinghao Tang of QIHU 360 Inc. for reporting this issue. All xen users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, all running fully-virtualized guests must be restarted 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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          "organization": "QIHU 360 Inc."
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          "text": "qemu: Heap overflow vulnerability in ne2000_receive() function",
          "title": "Vulnerability summary"
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          "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.\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 does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7.\n\nThis issue does not affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.",
          "title": "Statement"
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        {
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          "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.",
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2015-5279"
        },
        {
          "category": "external",
          "summary": "RHBZ#1256672",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1256672"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-5279",
          "url": "https://www.cve.org/CVERecord?id=CVE-2015-5279"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-5279",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5279"
        }
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      "release_date": "2015-09-15T00:00:00+00:00",
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "qemu: Heap overflow vulnerability in ne2000_receive() function"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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