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Red Hat Product Errata RHSA-2017:1483 - Security Advisory
Issued:
2017-06-19
Updated:
2017-06-19

RHSA-2017:1483 - 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 5.9 Long
Life.

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 5.9 x86_64
  • Red Hat Enterprise Linux Server - AUS 5.9 ia64
  • Red Hat Enterprise Linux Server - AUS 5.9 i386

Fixes

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

CVEs

  • CVE-2017-1000364

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 5.9

    SRPM
    kernel-2.6.18-348.33.2.el5.src.rpm SHA-256: 88017d09decc1aa9f886e85bc38900697be00666fcd5d3d7faec09d736ccb935
    x86_64
    kernel-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 78f904be8bba8b1e745d323ac6044db7b33f0d134ff4120429abd890861414c5
    kernel-debug-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 8267f040f481ef32b7ab4fccd643a9ded7b7a390af83d5ff203707db7ae6117e
    kernel-debug-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 730e611c1432e7e69853794046d9dc75c610d36794cf46fd8e9182b2321bef48
    kernel-debug-devel-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 85faa7c455ef1e5978e6748f8cddd0f0ae2daceb07fb9b2dac36729bf771423e
    kernel-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: e47b2111da00314a6949e86ab375438f2bb85232b5ab2992c094ac1108d13420
    kernel-debuginfo-common-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: ab518fe4d1ab9e0d436047321a15e95fc39e5b389635fd8138e46352b063ef6b
    kernel-devel-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: e504273dc14eee8b8d5229c000fe191e0df904f57f9d921ad27001e52c3e879a
    kernel-doc-2.6.18-348.33.2.el5.noarch.rpm SHA-256: c227b2ff5fca65c132da1a2387e1eaa97cf70058abab862edd67e9917f8dcbae
    kernel-headers-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 767819ad4e068bc65f06b5f64449052e40b8536e49f4bc4b7875c0f436edeb11
    kernel-xen-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 5cbc38c3d58ccc09299ea454675777b45905fe8049e3e8eec6ff9f00191e12cd
    kernel-xen-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 6204390d04281744665d5458d73dae23ea4c6b41e01f641500c8b7cccfc47e03
    kernel-xen-devel-2.6.18-348.33.2.el5.x86_64.rpm SHA-256: 5a65717decb382eeae3c7c52f1b6e27d5e38d5df69745f1ae7e9849d50677ea7
    ia64
    kernel-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 45bb008be47822e4a97d299afe546f885aa4e7c6e1668412fc07b21476369243
    kernel-debug-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 3d116a4c13ec11c21eac69a3d2a0d61527efb78a3997c6e9380784f166cc9ef3
    kernel-debug-debuginfo-2.6.18-348.33.2.el5.ia64.rpm SHA-256: de260e73bfa8e48d43f362a06132c8b4b9712cf423af8218ec09e4f2d5df7f50
    kernel-debug-devel-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 5cbd4773dc58d06ad3da306b994738ab1e8c159636f9d4c00a45ddf75a353cb6
    kernel-debuginfo-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 598a410d043cbd7af27dfe0905e1de95c59dcb1909bab71500910c4ceddbf5a9
    kernel-debuginfo-common-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 317e532ae74ee8067e25d9294c82ec8306496dd4a6dd6c85ddd960c2f03e7a39
    kernel-devel-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 9c2539e09fa3edd5437e4a3a20ef30d4050c3f97487c650971173830bbf70574
    kernel-doc-2.6.18-348.33.2.el5.noarch.rpm SHA-256: c227b2ff5fca65c132da1a2387e1eaa97cf70058abab862edd67e9917f8dcbae
    kernel-headers-2.6.18-348.33.2.el5.ia64.rpm SHA-256: e374d2936cf400b3a01977c44f33ff725db2c58b8b750623859b8279022827a1
    kernel-xen-2.6.18-348.33.2.el5.ia64.rpm SHA-256: ba2fd016f0354e64b4c6c839ba035c4ec8fa08b2e63819ae7f5e2adc63da0991
    kernel-xen-debuginfo-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 7b52ce1f4a19b9227070e697a4e49017c6b945e8622d2bdac5f862f677315900
    kernel-xen-devel-2.6.18-348.33.2.el5.ia64.rpm SHA-256: 6df577ddb20da80d2ce7ec26326736218fea038e5cf315a002ffc9761b869182
    i386
    kernel-2.6.18-348.33.2.el5.i686.rpm SHA-256: 5c55df0f75b3e164047b42c5231eb4b2c0ed8568a6ec20646679fc06e2b0102c
    kernel-PAE-2.6.18-348.33.2.el5.i686.rpm SHA-256: 442ba450360d4247962db88d528073b423af77b1e1d29db156aa265c76de86da
    kernel-PAE-debuginfo-2.6.18-348.33.2.el5.i686.rpm SHA-256: d367f9bb0d52d33b6f9a50ad5dd7e11bcb715ecbdff8d9830281e70b8f8fe6e1
    kernel-PAE-devel-2.6.18-348.33.2.el5.i686.rpm SHA-256: 7f7498f17d27ab15c668173af89fe3ef1e4828b4094f60ffc703c935054d19ce
    kernel-debug-2.6.18-348.33.2.el5.i686.rpm SHA-256: f53418b55a5d1869c6866313f3e24085b4a6f476f34b592cb0d2b11138c5b89f
    kernel-debug-debuginfo-2.6.18-348.33.2.el5.i686.rpm SHA-256: c241a906ef82a7f7e778b8b4f44a1c1dca2abfb6fa3f1b444713580a07759374
    kernel-debug-devel-2.6.18-348.33.2.el5.i686.rpm SHA-256: 794d6ce570c5377748d261a89defbc4da73699f81de7286c60049401a22cfac3
    kernel-debuginfo-2.6.18-348.33.2.el5.i686.rpm SHA-256: 2600350c735ec514cc761a2373ef268bfb7d31af0dbf7e2ff8502549d65d3fac
    kernel-debuginfo-common-2.6.18-348.33.2.el5.i686.rpm SHA-256: d726c04e66c60114056f628c3507ea6b5e4dfc724b1f53aab315fed56cbd41e2
    kernel-devel-2.6.18-348.33.2.el5.i686.rpm SHA-256: 227dcbc1be0cbe2c47bf0f9a43aee5cf856bd2b2a621897d9739ee01c2e151da
    kernel-doc-2.6.18-348.33.2.el5.noarch.rpm SHA-256: c227b2ff5fca65c132da1a2387e1eaa97cf70058abab862edd67e9917f8dcbae
    kernel-headers-2.6.18-348.33.2.el5.i386.rpm SHA-256: 26423e592d4f7f502040c80483717bfb82aef456d3d01b9d43b7c935de652bf1
    kernel-xen-2.6.18-348.33.2.el5.i686.rpm SHA-256: c122cd3e362698fbc85b81e05bc1a975698c69a012131bc6a12985deca1b151c
    kernel-xen-debuginfo-2.6.18-348.33.2.el5.i686.rpm SHA-256: eb090abe3e92e6932656ca014c0008cc05c4fabf2677ecce23bf4425598d43a4
    kernel-xen-devel-2.6.18-348.33.2.el5.i686.rpm SHA-256: bf81aa630e6304d0006b7289888e48df6a5ea9f426c899b43ed548094202f70a

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

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