Sigurnosni nedostatak jezgre operacijskog sustava

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Red Hat Security Advisory

Synopsis: Moderate: kernel security and enhancement update
Advisory ID: RHSA-2017:0869-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:0869
Issue date: 2017-04-04
CVE Names: CVE-2016-8399
=====================================================================

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 Moderate. 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 flaw was found in the Linux networking subsystem where a local attacker
with CAP_NET_ADMIN capabilities could cause an out-of-bounds memory access
by creating a smaller-than-expected ICMP header and sending to its
destination via sendto(). (CVE-2016-8399, Moderate)

Enhancement(s):

* Previously, the mpt3sas driver incorrectly checked the Transport Layer
Retries (TLR) state even on Redundant Array Of Independent Discs (RAID)
devices. Consequently, a kernel panic occurred when mpt3sas attempted to
read from the RAID devices. With this update, mpt3sas has been fixed to
check the TLR state only for non-RAID devices, and the kernel no longer
panics under the described circumstances. (BZ#1427459)

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/):

1403833 – CVE-2016-8399 kernel: net: Out of bounds stack read in memcpy_fromiovec

6. Package List:

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

Source:
kernel-2.6.32-573.41.1.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-573.41.1.el6.noarch.rpm
kernel-doc-2.6.32-573.41.1.el6.noarch.rpm
kernel-firmware-2.6.32-573.41.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debug-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-573.41.1.el6.i686.rpm
kernel-debug-devel-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.41.1.el6.x86_64.rpm
kernel-devel-2.6.32-573.41.1.el6.x86_64.rpm
kernel-headers-2.6.32-573.41.1.el6.x86_64.rpm
perf-2.6.32-573.41.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm

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

x86_64:
kernel-debug-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.41.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm
python-perf-2.6.32-573.41.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.x86_64.rpm

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

Source:
kernel-2.6.32-573.41.1.el6.src.rpm

i386:
kernel-2.6.32-573.41.1.el6.i686.rpm
kernel-debug-2.6.32-573.41.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debug-devel-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-573.41.1.el6.i686.rpm
kernel-devel-2.6.32-573.41.1.el6.i686.rpm
kernel-headers-2.6.32-573.41.1.el6.i686.rpm
perf-2.6.32-573.41.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm

noarch:
kernel-abi-whitelists-2.6.32-573.41.1.el6.noarch.rpm
kernel-doc-2.6.32-573.41.1.el6.noarch.rpm
kernel-firmware-2.6.32-573.41.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-573.41.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debug-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-573.41.1.el6.ppc64.rpm
kernel-devel-2.6.32-573.41.1.el6.ppc64.rpm
kernel-headers-2.6.32-573.41.1.el6.ppc64.rpm
perf-2.6.32-573.41.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-573.41.1.el6.s390x.rpm
kernel-debug-2.6.32-573.41.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-573.41.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-573.41.1.el6.s390x.rpm
kernel-devel-2.6.32-573.41.1.el6.s390x.rpm
kernel-headers-2.6.32-573.41.1.el6.s390x.rpm
kernel-kdump-2.6.32-573.41.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-573.41.1.el6.s390x.rpm
perf-2.6.32-573.41.1.el6.s390x.rpm
perf-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.s390x.rpm

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

i386:
kernel-debug-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-573.41.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm
python-perf-2.6.32-573.41.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.i686.rpm

ppc64:
kernel-debug-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-573.41.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm
python-perf-2.6.32-573.41.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-573.41.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
perf-debuginfo-2.6.32-573.41.1.el6.s390x.rpm
python-perf-2.6.32-573.41.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-573.41.1.el6.s390x.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-2016-8399
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

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