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[RHSA-2017:0316-01] Important: kernel security and bug fix update

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2017:0316-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0316.html

Issue date: 2017-02-23

CVE Names: CVE-2017-6074

=====================================================================

 

1. Summary:

 

An update for kernel is now available for Red Hat Enterprise Linux 6.7

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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64

Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x, x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

Security Fix(es):

 

* A use-after-free flaw was found in the way the Linux kernel's Datagram

Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer)

resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is

set on the socket. A local, unprivileged user could use this flaw to alter

the kernel memory, allowing them to escalate their privileges on the

system. (CVE-2017-6074, Important)

 

Red Hat would like to thank Andrey Konovalov (Google) for reporting this

issue.

 

Bug Fix(es):

 

* When an NFS server received a compound Remote Procedure Call (RPC) with

multiple operations where the SECINFO operation was the ninth or later

operation, the server terminated unexpectedly. This update fixes the NFS

server to correctly initialize all arguments of all compound RPC operations

that are beyond the first eight operations. As a result, the NFS server no

longer crashes in the described situation. (BZ#1413035)

 

4. 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.

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1423071 - CVE-2017-6074 kernel: use after free in dccp protocol

 

6. Package List:

 

Red Hat Enterprise Linux HPC Node EUS (v. 6.7):

 

Source:

kernel-2.6.32-573.40.1.el6.src.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-573.40.1.el6.noarch.rpm

kernel-doc-2.6.32-573.40.1.el6.noarch.rpm

kernel-firmware-2.6.32-573.40.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-573.40.1.el6.x86_64.rpm

kernel-devel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-headers-2.6.32-573.40.1.el6.x86_64.rpm

perf-2.6.32-573.40.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):

 

x86_64:

kernel-debug-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-573.40.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server EUS (v. 6.7):

 

Source:

kernel-2.6.32-573.40.1.el6.src.rpm

 

i386:

kernel-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-573.40.1.el6.i686.rpm

kernel-devel-2.6.32-573.40.1.el6.i686.rpm

kernel-headers-2.6.32-573.40.1.el6.i686.rpm

perf-2.6.32-573.40.1.el6.i686.rpm

perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-573.40.1.el6.noarch.rpm

kernel-doc-2.6.32-573.40.1.el6.noarch.rpm

kernel-firmware-2.6.32-573.40.1.el6.noarch.rpm

 

ppc64:

kernel-2.6.32-573.40.1.el6.ppc64.rpm

kernel-bootwrapper-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debug-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-573.40.1.el6.ppc64.rpm

kernel-devel-2.6.32-573.40.1.el6.ppc64.rpm

kernel-headers-2.6.32-573.40.1.el6.ppc64.rpm

perf-2.6.32-573.40.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

 

s390x:

kernel-2.6.32-573.40.1.el6.s390x.rpm

kernel-debug-2.6.32-573.40.1.el6.s390x.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-573.40.1.el6.s390x.rpm

kernel-devel-2.6.32-573.40.1.el6.s390x.rpm

kernel-headers-2.6.32-573.40.1.el6.s390x.rpm

kernel-kdump-2.6.32-573.40.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

kernel-kdump-devel-2.6.32-573.40.1.el6.s390x.rpm

perf-2.6.32-573.40.1.el6.s390x.rpm

perf-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

 

x86_64:

kernel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.i686.rpm

kernel-debug-devel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-573.40.1.el6.x86_64.rpm

kernel-devel-2.6.32-573.40.1.el6.x86_64.rpm

kernel-headers-2.6.32-573.40.1.el6.x86_64.rpm

perf-2.6.32-573.40.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional EUS (v. 6.7):

 

i386:

kernel-debug-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-573.40.1.el6.i686.rpm

perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

python-perf-2.6.32-573.40.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.i686.rpm

 

ppc64:

kernel-debug-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-573.40.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

python-perf-2.6.32-573.40.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-573.40.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

perf-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

python-perf-2.6.32-573.40.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-573.40.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-2.6.32-573.40.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-573.40.1.el6.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2017-6074

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

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