[RHSA-2017:0307-01] Moderate: kernel security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: kernel security and bug fix update

Advisory ID: RHSA-2017:0307-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0307.html

Issue date: 2017-02-23

CVE Names: CVE-2016-6136 CVE-2016-9555

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

 

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):

 

* When creating audit records for parameters to executed children

processes, an attacker can convince the Linux kernel audit subsystem can

create corrupt records which may allow an attacker to misrepresent or evade

logging of executing commands. (CVE-2016-6136, Moderate)

 

* A flaw was found in the Linux kernel's implementation of the SCTP

protocol. A remote attacker could trigger an out-of-bounds read with an

offset of up to 64kB potentially causing the system to crash.

(CVE-2016-9555, Moderate)

 

Bug Fix(es):

 

* The qlnic driver previously attempted to fetch pending transmission

descriptors before all writes were complete, which lead to firmware hangs.

With this update, the qlcnic driver has been fixed to complete all writes

before the hardware fetches any pending transmission descriptors. As a

result, the firmware no longer hangs with the qlcnic driver. (BZ#1403143)

 

* Previously, when a NFS share was mounted, the file-system (FS) cache was

incorrectly enabled even when the "-o fsc" option was not used in the mount

command. Consequently, the cachefilesd service stored files in the NFS

share even when not instructed to by the user. With this update, NFS does

not use the FS cache if not instructed by the "-o fsc" option. As a result,

NFS no longer enables caching if the "-o fsc" option is not used.

(BZ#1399172)

 

* Previously, an NFS client and NFS server got into a NFS4 protocol loop

involving a WRITE action and a NFS4ERR_EXPIRED response when the

current_fileid counter got to the wraparound point by overflowing the value

of 32 bits. This update fixes the NFS server to handle the current_fileid

wraparound. As a result, the described NFS4 protocol loop no longer occurs.

(BZ#1399174)

 

* Previously, certain configurations of the Hewlett Packard Smart Array

(HPSA) devices caused hardware to be set offline incorrectly when the HPSA

driver was expected to wait for existing I/O operations to complete.

Consequently, a kernel panic occurred. This update prevents the described

problem. As a result, the kernel panic no longer occurs. (BZ#1399175)

 

* Previously, memory corruption by copying data into the wrong memory

locations sometimes occurred, because the __copy_tofrom_user() function was

returning incorrect values. This update fixes the __copy_tofrom_user()

function so that it no longer returns larger values than the number of

bytes it was asked to copy. As a result, memory corruption no longer occurs

in he described scenario. (BZ#1398185)

 

* Previously, guest virtual machines (VMs) on a Hyper-V server cluster got

in some cases rebooted during the graceful node failover test, because the

host kept sending heartbeat packets independently of guests responding to

them. This update fixes the bug by properly responding to all the heartbeat

messages in the queue, even if they are pending. As a result, guest VMs no

longer get rebooted under the described circumstances. (BZ#1397739)

 

* When the "punching hole" feature of the fallocate utility was used on an

ext4 file system inode with extent depth of 1, the extent tree of the inode

sometimes became corrupted. With this update, the underlying source code

has been fixed, and extent tree corruption no longer occurs in the

described situation. (BZ#1397808)

 

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/):

 

1353533 - CVE-2016-6136 kernel: Race condition vulnerability in execve argv arguments

1397930 - CVE-2016-9555 kernel: Slab out-of-bounds access in sctp_sf_ootb()

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

kernel-2.6.32-642.15.1.el6.src.rpm

 

i386:

kernel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-headers-2.6.32-642.15.1.el6.i686.rpm

perf-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.15.1.el6.noarch.rpm

kernel-doc-2.6.32-642.15.1.el6.noarch.rpm

kernel-firmware-2.6.32-642.15.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

kernel-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-headers-2.6.32-642.15.1.el6.x86_64.rpm

perf-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

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

 

i386:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

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

 

Source:

kernel-2.6.32-642.15.1.el6.src.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.15.1.el6.noarch.rpm

kernel-doc-2.6.32-642.15.1.el6.noarch.rpm

kernel-firmware-2.6.32-642.15.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

kernel-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-headers-2.6.32-642.15.1.el6.x86_64.rpm

perf-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

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

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

kernel-2.6.32-642.15.1.el6.src.rpm

 

i386:

kernel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-headers-2.6.32-642.15.1.el6.i686.rpm

perf-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.15.1.el6.noarch.rpm

kernel-doc-2.6.32-642.15.1.el6.noarch.rpm

kernel-firmware-2.6.32-642.15.1.el6.noarch.rpm

 

ppc64:

kernel-2.6.32-642.15.1.el6.ppc64.rpm

kernel-bootwrapper-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debug-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-642.15.1.el6.ppc64.rpm

kernel-devel-2.6.32-642.15.1.el6.ppc64.rpm

kernel-headers-2.6.32-642.15.1.el6.ppc64.rpm

perf-2.6.32-642.15.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

 

s390x:

kernel-2.6.32-642.15.1.el6.s390x.rpm

kernel-debug-2.6.32-642.15.1.el6.s390x.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-642.15.1.el6.s390x.rpm

kernel-devel-2.6.32-642.15.1.el6.s390x.rpm

kernel-headers-2.6.32-642.15.1.el6.s390x.rpm

kernel-kdump-2.6.32-642.15.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

kernel-kdump-devel-2.6.32-642.15.1.el6.s390x.rpm

perf-2.6.32-642.15.1.el6.s390x.rpm

perf-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

 

x86_64:

kernel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

kernel-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-headers-2.6.32-642.15.1.el6.x86_64.rpm

perf-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

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

 

i386:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

ppc64:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-642.15.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

python-perf-2.6.32-642.15.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-642.15.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

perf-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

python-perf-2.6.32-642.15.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

kernel-2.6.32-642.15.1.el6.src.rpm

 

i386:

kernel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-headers-2.6.32-642.15.1.el6.i686.rpm

perf-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-642.15.1.el6.noarch.rpm

kernel-doc-2.6.32-642.15.1.el6.noarch.rpm

kernel-firmware-2.6.32-642.15.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.i686.rpm

kernel-debug-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

kernel-devel-2.6.32-642.15.1.el6.x86_64.rpm

kernel-headers-2.6.32-642.15.1.el6.x86_64.rpm

perf-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

 

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

 

i386:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-642.15.1.el6.i686.rpm

perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

python-perf-2.6.32-642.15.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-642.15.1.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-642.15.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-2.6.32-642.15.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-642.15.1.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-2016-6136

https://access.redhat.com/security/cve/CVE-2016-9555

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

https://access.redhat.com/security/vulnerabilities/2706661

 

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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