rhsa-2013_1520
Vulnerability from csaf_redhat
Published
2013-11-14 17:32
Modified
2024-11-05 18:14
Summary
Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Notes

Topic
Updated kernel packages that fix two security issues, one bug, and add two enhancements are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
Details
Red Hat OpenStack 3.0 includes a custom Red Hat Enterprise Linux 6.4 kernel. These custom kernel packages include support for network namespaces; this support is required to facilitate advanced OpenStack Networking deployments. * A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled IPv6 sockets that used the UDP_CORK option. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2013-4162, Moderate) * An information leak flaw was found in the way the Linux kernel's device mapper subsystem, under certain conditions, interpreted data written to snapshot block devices. An attacker could use this flaw to read data from disk blocks in free space, which are normally inaccessible. (CVE-2013-4299, Moderate) Red Hat would like to thank Hannes Frederic Sowa for reporting CVE-2013-4162; and Fujitsu for reporting CVE-2013-4299. This update also fixes the following bug: * Prior to this update, while performing Generic Routing Encapsulation (GRE), the possibility of having a 802.1Q inner header was not considered during the Generic Segmentation Offloading (GSO). With this update, a check has been added to detect the use of 802.1Q and handle the packet accordingly. (BZ#1005804) In addition, this update adds the following enhancements: * This update adds support for Distributed Overlay Virtual Ethernet (DOVE). (BZ#1009025) * This update adds support for Virtual Extensible LAN (VXLAN) as an Open vSwitch (OVS) tunneling type. (BZ#1009006) More information on the Red Hat Enterprise Linux 6.4 kernel packages upon which these custom kernel packages are based is available in RHSA-2013:1436: https://rhn.redhat.com/errata/RHSA-2013-1436.html All Red Hat OpenStack 3.0 users deploying the OpenStack Networking service are advised to install these updated packages.
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.


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        "text": "Updated kernel packages that fix two security issues, one bug, and add two\nenhancements are now available for Red Hat OpenStack 3.0.\n\nThe Red Hat Security Response Team has rated this update as having moderate\nsecurity impact. Common Vulnerability Scoring System (CVSS) base scores,\nwhich give detailed severity ratings, are available for each vulnerability\nfrom the CVE links in the References section.",
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        "text": "Red Hat OpenStack 3.0 includes a custom Red Hat Enterprise Linux 6.4\nkernel. These custom kernel packages include support for network\nnamespaces; this support is required to facilitate advanced OpenStack\nNetworking deployments.\n\n* A flaw was found in the way the Linux kernel\u0027s TCP/IP protocol suite\nimplementation handled IPv6 sockets that used the UDP_CORK option. A local,\nunprivileged user could use this flaw to cause a denial of service.\n(CVE-2013-4162, Moderate)\n\n* An information leak flaw was found in the way the Linux kernel\u0027s device\nmapper subsystem, under certain conditions, interpreted data written to\nsnapshot block devices. An attacker could use this flaw to read data from\ndisk blocks in free space, which are normally inaccessible. (CVE-2013-4299,\nModerate)\n\nRed Hat would like to thank Hannes Frederic Sowa for reporting\nCVE-2013-4162; and Fujitsu for reporting CVE-2013-4299.\n\nThis update also fixes the following bug:\n\n* Prior to this update, while performing Generic Routing Encapsulation\n(GRE), the possibility of having a 802.1Q inner header was not considered\nduring the Generic Segmentation Offloading (GSO). With this update, a check\nhas been added to detect the use of 802.1Q and handle the packet\naccordingly. (BZ#1005804)\n\nIn addition, this update adds the following enhancements:\n\n* This update adds support for Distributed Overlay Virtual Ethernet (DOVE).\n(BZ#1009025)\n\n* This update adds support for Virtual Extensible LAN (VXLAN) as an Open\nvSwitch (OVS) tunneling type. (BZ#1009006)\n\nMore information on the Red Hat Enterprise Linux 6.4 kernel packages upon\nwhich these custom kernel packages are based is available in\nRHSA-2013:1436:\n\nhttps://rhn.redhat.com/errata/RHSA-2013-1436.html\n\nAll Red Hat OpenStack 3.0 users deploying the OpenStack Networking service\nare advised to install these updated packages.",
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  "vulnerabilities": [
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          "names": [
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          ]
        }
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      "discovery_date": "2013-07-16T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "987627"
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          "category": "description",
          "text": "The udp_v6_push_pending_frames function in net/ipv6/udp.c in the IPv6 implementation in the Linux kernel through 3.10.3 makes an incorrect function call for pending data, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Kernel: net: panic while pushing pending data out of a IPv6 socket with UDP_CORK enabled",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.",
          "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"
        }
      ],
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          "summary": "Canonical URL",
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        },
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          "category": "external",
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        },
        {
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4162"
        }
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    },
    {
      "acknowledgments": [
        {
          "names": [
            "Fujitsu"
          ]
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      "discovery_date": "2013-08-08T00:00:00+00:00",
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          "text": "Interpretation conflict in drivers/md/dm-snap-persistent.c in the Linux kernel through 3.11.6 allows remote authenticated users to obtain sensitive information or modify data via a crafted mapping to a snapshot block device.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: dm: dm-snapshot data leak",
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        },
        {
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            "integrityImpact": "NONE",
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      "threats": [
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          "details": "Moderate"
        }
      ],
      "title": "kernel: dm: dm-snapshot data leak"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.