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      "text": "Moderate"
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        "text": "Updated xen packages that fix one security issue are now available for\nRed Hat Enterprise Linux 5.\n\nThe Red Hat Security Response Team has rated this update as having moderate\nsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available from the CVE link in\nthe References section.",
        "title": "Topic"
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      {
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        "text": "The xen packages contain administration tools and the xend service for\nmanaging the kernel-xen kernel for virtualization on Red Hat Enterprise\nLinux.\n\nA flaw was found in the way libxc, the Xen control library, handled\nexcessively large kernel and ramdisk images when starting new guests. A\nprivileged guest user in a para-virtualized guest (a DomU) could create a\ncrafted kernel or ramdisk image that, when attempting to use it during\nguest start, could result in an out-of-memory condition in the privileged\ndomain (the Dom0). (CVE-2012-4544)\n\nRed Hat would like to thank the Xen project for reporting this issue.\n\nAll users of xen are advised to upgrade to these updated packages, which\ncorrect this issue. After installing the updated packages, the xend service\nmust be restarted for this update to take effect.",
        "title": "Details"
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        "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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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0241.json"
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        },
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          "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.",
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-4544"
        },
        {
          "category": "external",
          "summary": "RHBZ#870412",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=870412"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-4544",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-4544"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-4544",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-4544"
        }
      ],
      "release_date": "2012-10-26T00:00:00+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2013-02-07T18:53:00+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. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/knowledge/articles/11258",
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            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 2.7,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:L/Au:S/C:N/I:N/A:P",
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          "category": "impact",
          "details": "Moderate"
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      ],
      "title": "xen: Xen domain builder Out-of-memory due to malicious kernel/ramdisk"
    }
  ]
}