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Hash: SHA1

====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2016:1100-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:1100.html
Issue date:        2016-05-24
CVE Names:         CVE-2015-5364 CVE-2015-5366 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 6.6
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. 6.6) - noarch, x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64

3. Description:

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

Security Fix(es):

* Two flaws were found in the way the Linux kernel's networking
implementation handled UDP packets with incorrect checksum values. A remote
attacker could potentially use these flaws to trigger an infinite loop in
the kernel, resulting in a denial of service on the system, or cause a
denial of service in applications using the edge triggered epoll
functionality. (CVE-2015-5364, CVE-2015-5366, Important)

Bug Fix(es):

* In anon_vma data structure, the degree counts number of child anon_vmas
and of VMAs that point to this anon_vma. In the unlink_anon_vma() function,
when its list is empty, anon_vma is going to be freed whether the external
refcount is zero or not, so the parent's degree should be decremented.
However, failure to decrement the degree triggered a BUG_ON() signal in
unlink_anon_vma(). The provided patch fixes this bug, and the degree is now
decremented as expected. (BZ#1326027)

Enhancement(s):

* The ixgbe NIC driver has been upgraded to upstream version 4.2.1, which
provides a number of bug fixes and enhancements over the previous version.
Notably:

NULL pointer crashes related to VLAN support have been fixed

Two more devices from the Intel X550 Ethernet controller family are now
supported: IDs 15AC and 15AD

Several PHY-related problems have been addressed: link disruptions and link
flapping

Added PHY-related support for Intel X550

System performance has been improved

(BZ#1315702)

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/):

1239029 - CVE-2015-5366 CVE-2015-5364 kernel: net: incorrect processing of checksums in UDP implementation

6. Package List:

Red Hat Enterprise Linux HPC Node EUS (v. 6.6):

Source:
kernel-2.6.32-504.49.1.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-504.49.1.el6.noarch.rpm
kernel-doc-2.6.32-504.49.1.el6.noarch.rpm
kernel-firmware-2.6.32-504.49.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
kernel-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-headers-2.6.32-504.49.1.el6.x86_64.rpm
perf-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6):

x86_64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 6.6):

Source:
kernel-2.6.32-504.49.1.el6.src.rpm

i386:
kernel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-headers-2.6.32-504.49.1.el6.i686.rpm
perf-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm

noarch:
kernel-abi-whitelists-2.6.32-504.49.1.el6.noarch.rpm
kernel-doc-2.6.32-504.49.1.el6.noarch.rpm
kernel-firmware-2.6.32-504.49.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-504.49.1.el6.ppc64.rpm
kernel-devel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-headers-2.6.32-504.49.1.el6.ppc64.rpm
perf-2.6.32-504.49.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-504.49.1.el6.s390x.rpm
kernel-devel-2.6.32-504.49.1.el6.s390x.rpm
kernel-headers-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-504.49.1.el6.s390x.rpm
perf-2.6.32-504.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm

x86_64:
kernel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
kernel-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-headers-2.6.32-504.49.1.el6.x86_64.rpm
perf-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 6.6):

i386:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm

ppc64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-504.49.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
python-perf-2.6.32-504.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.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-2015-5364
https://access.redhat.com/security/cve/CVE-2015-5366
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 2016 Red Hat, Inc.
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Red Hat 6.6 RHSA-2016:1100-01 Critical: Kernel Denial of Service Issue

red hat

May 24, 2016

An update for kernel is now available for Red Hat Enterprise Linux 6.6 Extended Update Support

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* Two flaws were found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use these flaws to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality. (CVE-2015-5364, CVE-2015-5366, Important)
Bug Fix(es):
* In anon_vma data structure, the degree counts number of child anon_vmas and of VMAs that point to this anon_vma. In the unlink_anon_vma() function, when its list is empty, anon_vma is going to be freed whether the external refcount is zero or not, so the parent's degree should be decremented. However, failure to decrement the degree triggered a BUG_ON() signal in unlink_anon_vma(). The provided patch fixes this bug, and the degree is now decremented as expected. (BZ#1326027)
Enhancement(s):
* The ixgbe NIC driver has been upgraded to upstream version 4.2.1, which provides a number of bug fixes and enhancements over the previous version. Notably:
NULL pointer crashes related to VLAN support have been fixed
Two more devices from the Intel X550 Ethernet controller family are now supported: IDs 15AC and 15AD
Several PHY-related problems have been addressed: link disruptions and link flapping
Added PHY-related support for Intel X550
System performance has been improved
(BZ#1315702)

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux important doS network issue

References

https://access.redhat.com/security/cve/CVE-2015-5364 https://access.redhat.com/security/cve/CVE-2015-5366 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux HPC Node EUS (v. 6.6):
Source: kernel-2.6.32-504.49.1.el6.src.rpm
noarch: kernel-abi-whitelists-2.6.32-504.49.1.el6.noarch.rpm kernel-doc-2.6.32-504.49.1.el6.noarch.rpm kernel-firmware-2.6.32-504.49.1.el6.noarch.rpm
x86_64: kernel-2.6.32-504.49.1.el6.x86_64.rpm kernel-debug-2.6.32-504.49.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.49.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm kernel-devel-2.6.32-504.49.1.el6.x86_64.rpm kernel-headers-2.6.32-504.49.1.el6.x86_64.rpm perf-2.6.32-504.49.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6):
x86_64: kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm

Read the Full Advisory

Severity

important

Lowest

Low

Medium

High

Critical

Advisory ID: RHSA-2016:1100-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2016:1100.html

Issue date: 2016-05-24

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux important doS network issue

Relevant Releases Architectures

Red Hat Enterprise Linux HPC Node EUS (v. 6.6) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64

Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64

Bugs Fixed

1239029 - CVE-2015-5366 CVE-2015-5364 kernel: net: incorrect processing of checksums in UDP implementation

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Red Hat 6.6 RHSA-2016:1100-01 Critical: Kernel Denial of Service Issue

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Red Hat 6.6 RHSA-2016:1100-01 Critical: Kernel Denial of Service Issue

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Red Hat 6.6 RHSA-2016:1100-01 Critical: Kernel Denial of Service Issue

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