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[RHSA-2016:0855-01] Moderate: kernel security, bug fix, and enhancement update

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

Red Hat Security Advisory

 

Synopsis: Moderate: kernel security, bug fix, and enhancement update

Advisory ID: RHSA-2016:0855-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0855.html

Issue date: 2016-05-10

CVE Names: CVE-2010-5313 CVE-2013-4312 CVE-2014-7842

CVE-2014-8134 CVE-2015-5156 CVE-2015-7509

CVE-2015-8215 CVE-2015-8324 CVE-2015-8543

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

 

1. Summary:

 

An update for kernel is now available for Red Hat Enterprise Linux 6.

 

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 Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

 

3. Description:

 

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

operating system.

 

Security Fix(es):

 

* It was found that reporting emulation failures to user space could lead

to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of

service. In the case of a local denial of service, an attacker must have

access to the MMIO area or be able to access an I/O port. Please note that

on certain systems, HPET is mapped to userspace as part of vdso (vvar) and

thus an unprivileged user may generate MMIO transactions (and enter the

emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate)

 

* It was found that the Linux kernel did not properly account file

descriptors passed over the unix socket against the process limit. A local

user could use this flaw to exhaust all available memory on the system.

(CVE-2013-4312, Moderate)

 

* A buffer overflow flaw was found in the way the Linux kernel's virtio-net

subsystem handled certain fraglists when the GRO (Generic Receive Offload)

functionality was enabled in a bridged network configuration. An attacker

on the local network could potentially use this flaw to crash the system,

or, although unlikely, elevate their privileges on the system.

(CVE-2015-5156, Moderate)

 

* It was found that the Linux kernel's IPv6 network stack did not properly

validate the value of the MTU variable when it was set. A remote attacker

could potentially use this flaw to disrupt a target system's networking

(packet loss) by setting an invalid MTU value, for example, via a

NetworkManager daemon that is processing router advertisement packets

running on the target system. (CVE-2015-8215, Moderate)

 

* A NULL pointer dereference flaw was found in the way the Linux kernel's

network subsystem handled socket creation with an invalid protocol

identifier. A local user could use this flaw to crash the system.

(CVE-2015-8543, Moderate)

 

* It was found that the espfix functionality does not work for 32-bit KVM

paravirtualized guests. A local, unprivileged guest user could potentially

use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low)

 

* A flaw was found in the way the Linux kernel's ext4 file system driver

handled non-journal file systems with an orphan list. An attacker with

physical access to the system could use this flaw to crash the system or,

although unlikely, escalate their privileges on the system. (CVE-2015-7509,

Low)

 

* A NULL pointer dereference flaw was found in the way the Linux kernel's

ext4 file system driver handled certain corrupted file system images. An

attacker with physical access to the system could use this flaw to crash

the system. (CVE-2015-8324, Low)

 

Red Hat would like to thank Nadav Amit for reporting CVE-2010-5313 and

CVE-2014-7842, Andy Lutomirski for reporting CVE-2014-8134, and Dmitriy

Monakhov (OpenVZ) for reporting CVE-2015-8324. The CVE-2015-5156 issue was

discovered by Jason Wang (Red Hat).

 

Additional Changes:

 

* Refer to Red Hat Enterprise Linux 6.8 Release Notes for information on

new kernel features and known issues, and Red Hat Enterprise Linux

Technical Notes for information on device driver updates, important changes

to external kernel parameters, notable bug fixes, and technology previews.

Both of these documents are linked to in the References section.

 

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/):

 

697750 - [xfs] concurrent aio/dio got stuck

723722 - BUG: SELinux is preventing /usr/bin/nautilus (deleted) "write" access on /media/TerraVolume.

889368 - LVM RAID: I/O can hang if entire stripe (mirror group) of RAID10 LV is killed while under snapshot

1066751 - tmpfs: creates files with inode number 0, rendering parent directory unremovable

1163762 - CVE-2010-5313 CVE-2014-7842 kernel: kvm: reporting emulation failures to userspace

1172765 - CVE-2014-8134 kernel: x86: espfix not working for 32-bit KVM paravirt guests

1197875 - CIFS DFS shares fail to mount when specifying sec= option

1225359 - bonding: fail to configure master mac address by initscripts

1242239 - md raid1 writemostly feature broken

1243852 - CVE-2015-5156 kernel: buffer overflow with fraglist larger than MAX_SKB_FRAGS + 2 in virtio-net

1248507 - kernel: [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A

1254020 - RHEL6.6: NFS client has kernel panic after seeing 'VFS: Busy inodes after unmount ... Self-destruct in 5 seconds. Have a nice day'

1259222 - CVE-2015-7509 kernel: Mounting ext2 fs e2fsprogs/tests/f_orphan as ext4 crashes system

1259870 - Incomplete nl80211 backport broke hostapd

1267261 - CVE-2015-8324 kernel: Null pointer dereference when mounting ext4

1283253 - CVE-2015-8215 kernel: MTU value is not validated in IPv6 stack causing packet loss

1290475 - CVE-2015-8543 kernel: IPv6 connect causes DoS via NULL pointer dereference

1297813 - CVE-2013-4312 kernel: File descriptors passed over unix sockets are not properly accounted

1310661 - BUG: unable to handle kernel paging request at 65642072 followed by kernel panic

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

kernel-2.6.32-642.el6.src.rpm

 

i386:

kernel-2.6.32-642.el6.i686.rpm

kernel-debug-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-devel-2.6.32-642.el6.i686.rpm

kernel-headers-2.6.32-642.el6.i686.rpm

perf-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.el6.noarch.rpm

kernel-doc-2.6.32-642.el6.noarch.rpm

kernel-firmware-2.6.32-642.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.el6.x86_64.rpm

kernel-debug-2.6.32-642.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

kernel-devel-2.6.32-642.el6.x86_64.rpm

kernel-headers-2.6.32-642.el6.x86_64.rpm

perf-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux Desktop Optional (v. 6):

 

i386:

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node (v. 6):

 

Source:

kernel-2.6.32-642.el6.src.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.el6.noarch.rpm

kernel-doc-2.6.32-642.el6.noarch.rpm

kernel-firmware-2.6.32-642.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.el6.x86_64.rpm

kernel-debug-2.6.32-642.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

kernel-devel-2.6.32-642.el6.x86_64.rpm

kernel-headers-2.6.32-642.el6.x86_64.rpm

perf-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node Optional (v. 6):

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

kernel-2.6.32-642.el6.src.rpm

 

i386:

kernel-2.6.32-642.el6.i686.rpm

kernel-debug-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-devel-2.6.32-642.el6.i686.rpm

kernel-headers-2.6.32-642.el6.i686.rpm

perf-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.el6.noarch.rpm

kernel-doc-2.6.32-642.el6.noarch.rpm

kernel-firmware-2.6.32-642.el6.noarch.rpm

 

ppc64:

kernel-2.6.32-642.el6.ppc64.rpm

kernel-bootwrapper-2.6.32-642.el6.ppc64.rpm

kernel-debug-2.6.32-642.el6.ppc64.rpm

kernel-debug-debuginfo-2.6.32-642.el6.ppc64.rpm

kernel-debug-devel-2.6.32-642.el6.ppc64.rpm

kernel-debuginfo-2.6.32-642.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-642.el6.ppc64.rpm

kernel-devel-2.6.32-642.el6.ppc64.rpm

kernel-headers-2.6.32-642.el6.ppc64.rpm

perf-2.6.32-642.el6.ppc64.rpm

perf-debuginfo-2.6.32-642.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-642.el6.ppc64.rpm

 

s390x:

kernel-2.6.32-642.el6.s390x.rpm

kernel-debug-2.6.32-642.el6.s390x.rpm

kernel-debug-debuginfo-2.6.32-642.el6.s390x.rpm

kernel-debug-devel-2.6.32-642.el6.s390x.rpm

kernel-debuginfo-2.6.32-642.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-642.el6.s390x.rpm

kernel-devel-2.6.32-642.el6.s390x.rpm

kernel-headers-2.6.32-642.el6.s390x.rpm

kernel-kdump-2.6.32-642.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-642.el6.s390x.rpm

kernel-kdump-devel-2.6.32-642.el6.s390x.rpm

perf-2.6.32-642.el6.s390x.rpm

perf-debuginfo-2.6.32-642.el6.s390x.rpm

python-perf-debuginfo-2.6.32-642.el6.s390x.rpm

 

x86_64:

kernel-2.6.32-642.el6.x86_64.rpm

kernel-debug-2.6.32-642.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

kernel-devel-2.6.32-642.el6.x86_64.rpm

kernel-headers-2.6.32-642.el6.x86_64.rpm

perf-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 6):

 

i386:

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

ppc64:

kernel-debug-debuginfo-2.6.32-642.el6.ppc64.rpm

kernel-debuginfo-2.6.32-642.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-642.el6.ppc64.rpm

perf-debuginfo-2.6.32-642.el6.ppc64.rpm

python-perf-2.6.32-642.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-642.el6.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-2.6.32-642.el6.s390x.rpm

kernel-debuginfo-2.6.32-642.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-642.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-642.el6.s390x.rpm

perf-debuginfo-2.6.32-642.el6.s390x.rpm

python-perf-2.6.32-642.el6.s390x.rpm

python-perf-debuginfo-2.6.32-642.el6.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

kernel-2.6.32-642.el6.src.rpm

 

i386:

kernel-2.6.32-642.el6.i686.rpm

kernel-debug-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-devel-2.6.32-642.el6.i686.rpm

kernel-headers-2.6.32-642.el6.i686.rpm

perf-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.el6.noarch.rpm

kernel-doc-2.6.32-642.el6.noarch.rpm

kernel-firmware-2.6.32-642.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.el6.x86_64.rpm

kernel-debug-2.6.32-642.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.el6.i686.rpm

kernel-debug-devel-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

kernel-devel-2.6.32-642.el6.x86_64.rpm

kernel-headers-2.6.32-642.el6.x86_64.rpm

perf-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 6):

 

i386:

kernel-debug-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-2.6.32-642.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.el6.i686.rpm

perf-debuginfo-2.6.32-642.el6.i686.rpm

python-perf-2.6.32-642.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.el6.x86_64.rpm

python-perf-2.6.32-642.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.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-2010-5313

https://access.redhat.com/security/cve/CVE-2013-4312

https://access.redhat.com/security/cve/CVE-2014-7842

https://access.redhat.com/security/cve/CVE-2014-8134

https://access.redhat.com/security/cve/CVE-2015-5156

https://access.redhat.com/security/cve/CVE-2015-7509

https://access.redhat.com/security/cve/CVE-2015-8215

https://access.redhat.com/security/cve/CVE-2015-8324

https://access.redhat.com/security/cve/CVE-2015-8543

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

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Release_Notes/index.html

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Technical_Notes/index.html

 

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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