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Red Hat Product Errata RHSA-2017:1489 - Security Advisory
Issued:
2017-06-19
Updated:
2017-06-19

RHSA-2017:1489 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.5 Advanced Update Support and Red Hat Enterprise Linux 6.5 Telco Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364, Important)

Red Hat would like to thank Qualys Research Labs for reporting this issue.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux Server - AUS 6.5 x86_64
  • Red Hat Enterprise Linux Server - TUS 6.5 x86_64

Fixes

  • BZ - 1461333 - CVE-2017-1000364 kernel: heap/stack gap jumping via unbounded stack allocations

CVEs

  • CVE-2017-1000364
  • CVE-2017-1000379

References

  • https://access.redhat.com/security/updates/classification/#important
  • https://access.redhat.com/security/vulnerabilities/stackguard
  • Note: More recent versions of these packages may be available. Click a package name for more details.

    Red Hat Enterprise Linux Server - AUS 6.5

    SRPM
    kernel-2.6.32-431.80.2.el6.src.rpm SHA-256: f9caf7b2a66d8f3246d1f1cafc8dabb53fa34b667bf84f1e54544bbf9dc61052
    x86_64
    kernel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: b241570e13d8890cca7fce1d332cb616d50b0e01549d3a5db35d1dd3d9a3cdb7
    kernel-abi-whitelists-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 7e469d4d6deef72a30d58ee291bbf55cee394b117d0008ece1c24c8d1b5e7ec2
    kernel-debug-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 8fac43f2edad3ea2c82baffdfde5d88cd2c3f6bc8f9a048672f03afc9ad77b23
    kernel-debug-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 70312c3134e8f8a6ab07b4eb57366dc802d676ae6af3022497b80269e1c15661
    kernel-debug-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 70312c3134e8f8a6ab07b4eb57366dc802d676ae6af3022497b80269e1c15661
    kernel-debug-devel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96397c1c3d2ab349cf2dcf54a1d25c585f4df8502e5e655a787d837858aec6f7
    kernel-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96a100c9caa99704c96c0861d7780851879dc394419e0daa744cefe33be22403
    kernel-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96a100c9caa99704c96c0861d7780851879dc394419e0daa744cefe33be22403
    kernel-debuginfo-common-x86_64-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 855c62881b905fb683a2f566a535618e1312b37b4ff0955e8840697f591da1cf
    kernel-debuginfo-common-x86_64-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 855c62881b905fb683a2f566a535618e1312b37b4ff0955e8840697f591da1cf
    kernel-devel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7275b69b41834e7c1318166b01fc024b1345c8820df1f01f7f4f9730c280e47f
    kernel-doc-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 2866b311e4c9956f1d55c94e250156a499cd17e952f98126328bc3b49fdb6026
    kernel-firmware-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 3ce36d43d60353b112486d04059aa95a2ca1848e9972f1865b2451b2075d8938
    kernel-headers-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: d54ac6923698c083617350498aa935f6ae05a851a0eb491e6d690997dbfcad1e
    perf-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 550378938612676c64481dcba224cc8ffc75657187c06add69ec4e9cdaac5a62
    perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7b5fc02e6acb9ae3a301aef2529105e3e30f2556898625f236cb712419011b9e
    perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7b5fc02e6acb9ae3a301aef2529105e3e30f2556898625f236cb712419011b9e
    python-perf-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: c89ef25b92a5c8649b7ce8db6da55ab40e106aa7c6233313c90e6d28e01a471f
    python-perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 5a633c75576263d87dde6751d3fdb812a0b4d0baf3f2be3ee76c8254f439a970
    python-perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 5a633c75576263d87dde6751d3fdb812a0b4d0baf3f2be3ee76c8254f439a970

    Red Hat Enterprise Linux Server - TUS 6.5

    SRPM
    kernel-2.6.32-431.80.2.el6.src.rpm SHA-256: f9caf7b2a66d8f3246d1f1cafc8dabb53fa34b667bf84f1e54544bbf9dc61052
    x86_64
    kernel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: b241570e13d8890cca7fce1d332cb616d50b0e01549d3a5db35d1dd3d9a3cdb7
    kernel-abi-whitelists-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 7e469d4d6deef72a30d58ee291bbf55cee394b117d0008ece1c24c8d1b5e7ec2
    kernel-debug-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 8fac43f2edad3ea2c82baffdfde5d88cd2c3f6bc8f9a048672f03afc9ad77b23
    kernel-debug-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 70312c3134e8f8a6ab07b4eb57366dc802d676ae6af3022497b80269e1c15661
    kernel-debug-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 70312c3134e8f8a6ab07b4eb57366dc802d676ae6af3022497b80269e1c15661
    kernel-debug-devel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96397c1c3d2ab349cf2dcf54a1d25c585f4df8502e5e655a787d837858aec6f7
    kernel-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96a100c9caa99704c96c0861d7780851879dc394419e0daa744cefe33be22403
    kernel-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 96a100c9caa99704c96c0861d7780851879dc394419e0daa744cefe33be22403
    kernel-debuginfo-common-x86_64-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 855c62881b905fb683a2f566a535618e1312b37b4ff0955e8840697f591da1cf
    kernel-debuginfo-common-x86_64-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 855c62881b905fb683a2f566a535618e1312b37b4ff0955e8840697f591da1cf
    kernel-devel-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7275b69b41834e7c1318166b01fc024b1345c8820df1f01f7f4f9730c280e47f
    kernel-doc-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 2866b311e4c9956f1d55c94e250156a499cd17e952f98126328bc3b49fdb6026
    kernel-firmware-2.6.32-431.80.2.el6.noarch.rpm SHA-256: 3ce36d43d60353b112486d04059aa95a2ca1848e9972f1865b2451b2075d8938
    kernel-headers-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: d54ac6923698c083617350498aa935f6ae05a851a0eb491e6d690997dbfcad1e
    perf-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 550378938612676c64481dcba224cc8ffc75657187c06add69ec4e9cdaac5a62
    perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7b5fc02e6acb9ae3a301aef2529105e3e30f2556898625f236cb712419011b9e
    perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 7b5fc02e6acb9ae3a301aef2529105e3e30f2556898625f236cb712419011b9e
    python-perf-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: c89ef25b92a5c8649b7ce8db6da55ab40e106aa7c6233313c90e6d28e01a471f
    python-perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 5a633c75576263d87dde6751d3fdb812a0b4d0baf3f2be3ee76c8254f439a970
    python-perf-debuginfo-2.6.32-431.80.2.el6.x86_64.rpm SHA-256: 5a633c75576263d87dde6751d3fdb812a0b4d0baf3f2be3ee76c8254f439a970

    The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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