rhsa-2011_1253
Vulnerability from csaf_redhat
Published
2011-09-12 19:40
Modified
2024-11-22 04:54
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update

Notes

Topic
Updated kernel-rt packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise MRG 2.0. The Red Hat Security Response Team has rated this update as having important 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
Security fixes: * A flaw in the SCTP and DCCP implementations could allow a remote attacker to cause a denial of service. (CVE-2010-4526, CVE-2011-1770, Important) * Flaws in the Management Module Support for Message Passing Technology (MPT) based controllers could allow a local, unprivileged user to cause a denial of service, an information leak, or escalate their privileges. (CVE-2011-1494, CVE-2011-1495, Important) * Flaws in the AGPGART driver, and a flaw in agp_allocate_memory(), could allow a local user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, Important) * A flaw in the client-side NLM implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2491, Important) * A flaw in the Bluetooth implementation could allow a remote attacker to cause a denial of service or escalate their privileges. (CVE-2011-2497, Important) * Flaws in the netlink-based wireless configuration interface could allow a local user, who has the CAP_NET_ADMIN capability, to cause a denial of service or escalate their privileges on systems that have an active wireless interface. (CVE-2011-2517, Important) * The maximum file offset handling for ext4 file systems could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2695, Important) * A local, unprivileged user could allocate large amounts of memory not visible to the OOM killer, causing a denial of service. (CVE-2010-4243, Moderate) * The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues. (CVE-2011-1020, Moderate) * A local, privileged user could possibly write arbitrary kernel memory via /sys/kernel/debug/acpi/custom_method. (CVE-2011-1021, Moderate) * Inconsistency in the methods for allocating and freeing NFSv4 ACL data; CVE-2010-4250 fix caused a regression; a flaw in next_pidmap() and inet_diag_bc_audit(); flaws in the CAN implementation; a race condition in the memory merging support; a flaw in the taskstats subsystem; and the way mapping expansions were handled could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1090, CVE-2011-1479, CVE-2011-1593, CVE-2011-2213, CVE-2011-1598, CVE-2011-1748, CVE-2011-2183, CVE-2011-2484, CVE-2011-2496, Moderate) * A flaw in GRO could result in a denial of service when a malformed VLAN frame is received. (CVE-2011-1478, Moderate) * napi_reuse_skb() could be called on VLAN packets allowing an attacker on the local network to possibly trigger a denial of service. (CVE-2011-1576, Moderate) * A denial of service could occur if packets were received while the ipip or ip_gre module was being loaded. (CVE-2011-1767, CVE-2011-1768, Moderate) * Information leaks. (CVE-2011-1160, CVE-2011-2492, CVE-2011-2495, Low) * Flaws in the EFI GUID Partition Table implementation could allow a local attacker to cause a denial of service. (CVE-2011-1577, CVE-2011-1776, Low) * While a user has a CIFS share mounted that required successful authentication, a local, unprivileged user could mount that share without knowing the correct password if mount.cifs was setuid root. (CVE-2011-1585, Low) Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1770, CVE-2011-1494, CVE-2011-1495, CVE-2011-2497, and CVE-2011-2213; Vasiliy Kulikov of Openwall for reporting CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, CVE-2011-2484, and CVE-2011-2495; Vasily Averin for reporting CVE-2011-2491; Brad Spengler for reporting CVE-2010-4243; Kees Cook for reporting CVE-2011-1020; Robert Swiecki for reporting CVE-2011-1593 and CVE-2011-2496; Oliver Hartkopp for reporting CVE-2011-1748; Andrea Righi for reporting CVE-2011-2183; Ryan Sweat for reporting CVE-2011-1478 and CVE-2011-1576; Peter Huewe for reporting CVE-2011-1160; Marek Kroemeke and Filip Palian for reporting CVE-2011-2492; and Timo Warns for reporting CVE-2011-1577 and CVE-2011-1776.
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-rt packages that fix multiple security issues and various\nbugs are now available for Red Hat Enterprise MRG 2.0.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. Common Vulnerability Scoring System (CVSS) base\nscores, which give detailed severity ratings, are available for each\nvulnerability from the CVE links in the References section.",
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        "text": "Security fixes:\n\n* A flaw in the SCTP and DCCP implementations could allow a remote attacker\nto cause a denial of service. (CVE-2010-4526, CVE-2011-1770, Important)\n\n* Flaws in the Management Module Support for Message Passing Technology\n(MPT) based controllers could allow a local, unprivileged user to cause a\ndenial of service, an information leak, or escalate their privileges.\n(CVE-2011-1494, CVE-2011-1495, Important)\n\n* Flaws in the AGPGART driver, and a flaw in agp_allocate_memory(), could\nallow a local user to cause a denial of service or escalate their\nprivileges. (CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, Important)\n\n* A flaw in the client-side NLM implementation could allow a local,\nunprivileged user to cause a denial of service. (CVE-2011-2491, Important)\n\n* A flaw in the Bluetooth implementation could allow a remote attacker to\ncause a denial of service or escalate their privileges. (CVE-2011-2497,\nImportant)\n\n* Flaws in the netlink-based wireless configuration interface could allow a\nlocal user, who has the CAP_NET_ADMIN capability, to cause a denial of\nservice or escalate their privileges on systems that have an active\nwireless interface. (CVE-2011-2517, Important)\n\n* The maximum file offset handling for ext4 file systems could allow a\nlocal, unprivileged user to cause a denial of service. (CVE-2011-2695,\nImportant)\n\n* A local, unprivileged user could allocate large amounts of memory not\nvisible to the OOM killer, causing a denial of service. (CVE-2010-4243,\nModerate)\n\n* The proc file system could allow a local, unprivileged user to obtain\nsensitive information or possibly cause integrity issues. (CVE-2011-1020,\nModerate)\n\n* A local, privileged user could possibly write arbitrary kernel memory via\n/sys/kernel/debug/acpi/custom_method. (CVE-2011-1021, Moderate)\n\n* Inconsistency in the methods for allocating and freeing NFSv4 ACL data;\nCVE-2010-4250 fix caused a regression; a flaw in next_pidmap() and\ninet_diag_bc_audit(); flaws in the CAN implementation; a race condition in\nthe memory merging support; a flaw in the taskstats subsystem; and the way\nmapping expansions were handled could allow a local, unprivileged user to\ncause a denial of service. (CVE-2011-1090, CVE-2011-1479, CVE-2011-1593,\nCVE-2011-2213, CVE-2011-1598, CVE-2011-1748, CVE-2011-2183, CVE-2011-2484,\nCVE-2011-2496, Moderate)\n\n* A flaw in GRO could result in a denial of service when a malformed VLAN\nframe is received. (CVE-2011-1478, Moderate)\n\n* napi_reuse_skb() could be called on VLAN packets allowing an attacker on\nthe local network to possibly trigger a denial of service. (CVE-2011-1576,\nModerate)\n\n* A denial of service could occur if packets were received while the ipip\nor ip_gre module was being loaded. (CVE-2011-1767, CVE-2011-1768, Moderate)\n\n* Information leaks. (CVE-2011-1160, CVE-2011-2492, CVE-2011-2495, Low)\n\n* Flaws in the EFI GUID Partition Table implementation could allow a local\nattacker to cause a denial of service. (CVE-2011-1577, CVE-2011-1776, Low)\n\n* While a user has a CIFS share mounted that required successful\nauthentication, a local, unprivileged user could mount that share without\nknowing the correct password if mount.cifs was setuid root. (CVE-2011-1585,\nLow)\n\nRed Hat would like to thank Dan Rosenberg for reporting CVE-2011-1770,\nCVE-2011-1494, CVE-2011-1495, CVE-2011-2497, and CVE-2011-2213; Vasiliy\nKulikov of Openwall for reporting CVE-2011-1745, CVE-2011-2022,\nCVE-2011-1746, CVE-2011-2484, and CVE-2011-2495; Vasily Averin for\nreporting CVE-2011-2491; Brad Spengler for reporting CVE-2010-4243; Kees\nCook for reporting CVE-2011-1020; Robert Swiecki for reporting\nCVE-2011-1593 and CVE-2011-2496; Oliver Hartkopp for reporting\nCVE-2011-1748; Andrea Righi for reporting CVE-2011-2183; Ryan Sweat for\nreporting CVE-2011-1478 and CVE-2011-1576; Peter Huewe for reporting\nCVE-2011-1160; Marek Kroemeke and Filip Palian for reporting CVE-2011-2492;\nand Timo Warns for reporting CVE-2011-1577 and CVE-2011-1776.",
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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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          "details": "Moderate"
        }
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      "title": "kernel: mm: mem allocated invisible to oom_kill() when not attached to any threads"
    },
    {
      "cve": "CVE-2010-4526",
      "cwe": {
        "id": "CWE-119",
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      "discovery_date": "2010-12-22T00:00:00+00:00",
      "ids": [
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          "text": "664914"
        }
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        {
          "category": "description",
          "text": "Race condition in the sctp_icmp_proto_unreachable function in net/sctp/input.c in Linux kernel 2.6.11-rc2 through 2.6.33 allows remote attackers to cause a denial of service (panic) via an ICMP unreachable message to a socket that is already locked by a user, which causes the socket to be freed and triggers list corruption, related to the sctp_wait_for_connect function.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: sctp: a race between ICMP protocol unreachable and connect()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The Linux kernel as shipped with Red Hat Enterprise Linux 4 did not include\nupstream commit history:5aabd1fe268e850c2e93048a5ccc5eb6970ac49c, and therefore\nis not affected by this issue. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via http://rhn.redhat.com/errata/RHSA-2011-0163.html, https://rhn.redhat.com/errata/RHSA-2011-0421.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
          "title": "Statement"
        },
        {
          "category": "general",
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          "title": "CVSS score applicability"
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      "title": "kernel: sctp: a race between ICMP protocol unreachable and connect()"
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          "names": [
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          ]
        }
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      "cve": "CVE-2011-1020",
      "discovery_date": "2011-02-25T00:00:00+00:00",
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          "category": "description",
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: no access restrictions of /proc/pid/* after setuid program exec",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.\n\nThis has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via RHSA-2012:0007, RHSA-2011:1530 and RHSA-2011:1253 respectively.",
          "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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          "title": "Vulnerability description"
        },
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          "title": "Vulnerability summary"
        },
        {
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          "text": "The version of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and 6 as they did not include upstream commit a1a541d8 and a25ee920 that introduced the problem. This has been addressed in Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1253.html.\n\nNotes:\n\nThis requires debugfs to be mounted on a local system in order to have access\nto the custom_method file. Debugfs is not mounted by default. You need to run\n\"mount -t debugfs nodev /sys/kernel/debug\" as root first.",
          "title": "Statement"
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "title": "Statement"
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          "title": "Vulnerability description"
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        },
        {
          "category": "other",
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          "details": "Important"
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      ],
      "title": "kernel: drivers/scsi/mpt2sas: prevent heap overflows"
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        }
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      "cwe": {
        "id": "CWE-401",
        "name": "Missing Release of Memory after Effective Lifetime"
      },
      "discovery_date": "2011-02-04T00:00:00+00:00",
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          "text": "695173"
        }
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      "notes": [
        {
          "category": "description",
          "text": "The Generic Receive Offload (GRO) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization (RHEV) Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN packets that are processed by the napi_reuse_skb function, leading to (1) a memory leak or (2) memory corruption, a different vulnerability than CVE-2011-1478.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net: Fix memory leak/corruption on VLAN GRO_DROP",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the version of Linux kernel as shipped with Red Hat\nEnterprise Linux 4 as it did not support Generic Receive Offload (GRO). This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html and https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
          "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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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:C",
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          "category": "description",
          "text": "Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
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          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0833.html, https://rhn.redhat.com/errata/RHSA-2011-1465.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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          "system_name": "Red Hat Bugzilla ID",
          "text": "697394"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: cifs session reuse",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the versions of Linux kernel as shipped in Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG as they did not ship mount.cifs with root setuid set. However, as a preventive meaasure, we have addressed this in Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1386.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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            "integrityImpact": "PARTIAL",
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      "title": "kernel: cifs session reuse"
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          ]
        }
      ],
      "cve": "CVE-2011-1593",
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      "ids": [
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          "text": "697822"
        }
      ],
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        {
          "category": "description",
          "text": "Multiple integer overflows in the next_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4 allow local users to cause a denial of service (system crash) via a crafted (1) getdents or (2) readdir system call.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: proc: signedness issue in next_pidmap()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html, https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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        {
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          "text": "The bcm_release function in net/can/bcm.c in the Linux kernel before 2.6.39-rc6 does not properly validate a socket data structure, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted release operation.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: missing check in can/bcm and can/raw socket releases",
          "title": "Vulnerability summary"
        },
        {
          "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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            "integrityImpact": "NONE",
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      "title": "kernel: missing check in can/bcm and can/raw socket releases"
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          "title": "Vulnerability description"
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        {
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          "text": "kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls",
          "title": "Vulnerability summary"
        },
        {
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          "text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html, https://rhn.redhat.com/errata/RHSA-2011-1350.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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          "title": "Vulnerability description"
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          "title": "Statement"
        },
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          "title": "Vulnerability description"
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "details": "Important"
        }
      ],
      "title": "kernel: dccp: handle invalid feature options length"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Timo Warns"
          ]
        }
      ],
      "cve": "CVE-2011-1776",
      "discovery_date": "2011-05-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "703026"
        }
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      "notes": [
        {
          "category": "description",
          "text": "The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows physically proximate attackers to cause a denial of service (heap-based buffer overflow and OOPS) or obtain sensitive information from kernel heap memory by connecting a crafted GPT storage device, a different vulnerability than CVE-2011-1577.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: validate size of EFI GUID partition entries",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html and https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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            "baseScore": 4.9,
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            "integrityImpact": "NONE",
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            "version": "2.0"
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          "details": "Low"
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      ],
      "title": "kernel: validate size of EFI GUID partition entries"
    },
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          "names": [
            "Vasiliy Kulikov"
          ],
          "organization": "Openwall"
        }
      ],
      "cve": "CVE-2011-2022",
      "discovery_date": "2011-04-21T00:00:00+00:00",
      "ids": [
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          "category": "description",
          "text": "The agp_generic_remove_memory function in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 does not validate a certain start parameter, which allows local users to gain privileges or cause a denial of service (system crash) via a crafted AGPIOC_UNBIND agp_ioctl ioctl call, a different vulnerability than CVE-2011-1745.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html, https://rhn.redhat.com/errata/RHSA-2011-1350.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "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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            "baseScore": 6.6,
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            "integrityImpact": "COMPLETE",
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    },
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          "title": "Vulnerability description"
        },
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          "text": "kernel: ksm: race between ksmd and exiting task",
          "title": "Vulnerability summary"
        },
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          "category": "other",
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          "title": "Statement"
        },
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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.",
          "title": "CVSS score applicability"
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        },
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          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2183"
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      "title": "kernel: ksm: race between ksmd and exiting task"
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        }
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      "ids": [
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          "text": "The inet_diag_bc_audit function in net/ipv4/inet_diag.c in the Linux kernel before 2.6.39.3 does not properly audit INET_DIAG bytecode, which allows local users to cause a denial of service (kernel infinite loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message, as demonstrated by an INET_DIAG_BC_JMP instruction with a zero yes value, a different vulnerability than CVE-2010-3880.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: inet_diag: insufficient validation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 4,\n5, 6, and Red Hat Enterprise MRG. Red Hat Enterprise Linux 4 is now in\nProduction 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html, https://rhn.redhat.com/errata/RHSA-2011-1189.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
          "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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        {
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          "organization": "Openwall"
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      "discovery_date": "2011-06-22T00:00:00+00:00",
      "ids": [
        {
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        {
          "category": "description",
          "text": "The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "kernel: taskstats: duplicate entries in listener mode can lead to DoS",
          "title": "Vulnerability summary"
        },
        {
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          "text": "This issue did not affect the versions of Linux kernel as shipped with Red Hat\nEnterprise Linux 4 as it did not provide support for the Taskstats interface. This was fixed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1386.html, https://rhn.redhat.com/errata/RHSA-2011-1350.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
          "title": "Statement"
        },
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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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          "title": "Vulnerability description"
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "title": "Statement"
        },
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          "text": "fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user\u0027s password.",
          "title": "Vulnerability description"
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          "category": "summary",
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          "title": "Vulnerability summary"
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          "text": "This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1212.html, https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
          "title": "Statement"
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      "title": "kernel: mm: avoid wrapping vm_pgoff in mremap() and stack expansions"
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        {
          "names": [
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        {
          "category": "description",
          "text": "Integer underflow in the l2cap_config_req function in net/bluetooth/l2cap_core.c in the Linux kernel before 3.0 allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a small command-size value within the command header of a Logical Link Control and Adaptation Protocol (L2CAP) configuration request, leading to a buffer overflow.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: bluetooth: buffer overflow in l2cap config request",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not backport the upstream commit 5dee9e7c that introduced this issue. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
          "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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      "discovery_date": "2011-06-11T00:00:00+00:00",
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          "text": "Multiple buffer overflows in net/wireless/nl80211.c in the Linux kernel before 2.6.39.2 allow local users to gain privileges by leveraging the CAP_NET_ADMIN capability during scan operations with a long SSID value.",
          "title": "Vulnerability description"
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        {
          "category": "summary",
          "text": "kernel: ext4: kernel panic when writing data to the last block of sparse file",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1386.html,  https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not include support for EXT4 filesystem.",
          "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-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.src",
          "6Server-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debug-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-doc-0:2.6.33.9-rt31.75.el6rt.noarch",
          "6Server-MRG-Realtime-2:kernel-rt-firmware-0:2.6.33.9-rt31.75.el6rt.noarch",
          "6Server-MRG-Realtime-2:kernel-rt-trace-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-trace-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
          "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-0:2.6.33.9-rt31.75.el6rt.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2011-2695"
        },
        {
          "category": "external",
          "summary": "RHBZ#722557",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=722557"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2011-2695",
          "url": "https://www.cve.org/CVERecord?id=CVE-2011-2695"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-2695",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2695"
        }
      ],
      "release_date": "2011-06-03T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2011-09-12T19:40:00+00:00",
          "details": "This update also fixes various bugs. Documentation for these bug fixes\nwill be available shortly from the Technical Notes document linked to\nin the References section.\n\nUsers should upgrade to these updated packages, which correct these\nissues, and fix the bugs noted in the Technical Notes. The system\nmust be rebooted for this update to take effect.\n\nBefore 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/kb/docs/DOC-11259\n\nTo install kernel packages manually, use \"rpm -ivh [package]\". Do not\nuse \"rpm -Uvh\" as that will remove the running kernel binaries from\nyour system. You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly on your system.",
          "product_ids": [
            "6Server-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.src",
            "6Server-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-doc-0:2.6.33.9-rt31.75.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-firmware-0:2.6.33.9-rt31.75.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-trace-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-0:2.6.33.9-rt31.75.el6rt.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2011:1253"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 4.9,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "products": [
            "6Server-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.src",
            "6Server-MRG-Realtime-2:kernel-rt-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debug-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-doc-0:2.6.33.9-rt31.75.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-firmware-0:2.6.33.9-rt31.75.el6rt.noarch",
            "6Server-MRG-Realtime-2:kernel-rt-trace-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-trace-devel-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-0:2.6.33.9-rt31.75.el6rt.x86_64",
            "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-0:2.6.33.9-rt31.75.el6rt.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "kernel: ext4: kernel panic when writing data to the last block of sparse file"
    }
  ]
}


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