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[RHSA-2015:0782-01] 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-2015:0782-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0782.html

Issue date: 2015-04-07

CVE Names: CVE-2013-2596 CVE-2014-3690 CVE-2014-5471

CVE-2014-5472 CVE-2014-8159 CVE-2014-8884

CVE-2015-1421

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

 

1. Summary:

 

Updated kernel packages that fix multiple security issues and several bugs

are now available for Red Hat Enterprise Linux 6.5 Extended Update Support.

 

Red Hat Product Security has rated this update as having Important security

impact. Common Vulnerability Scoring System (CVSS) base scores, which give

detailed severity ratings, are available for each vulnerability from the

CVE links in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) - x86_64

Red Hat Enterprise Linux HPC Node EUS (v. 6.5) - noarch, x86_64

Red Hat Enterprise Linux Server EUS (v. 6.5) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.5) - i386, ppc64, s390x, x86_64

 

3. Description:

 

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

operating system.

 

* It was found that the Linux kernel's Infiniband subsystem did not

properly sanitize input parameters while registering memory regions from

user space via the (u)verbs API. A local user with access to a

/dev/infiniband/uverbsX device could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2014-8159,

Important)

 

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

implementation handled authentication key reference counting during INIT

collisions. A remote attacker could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2015-1421,

Important)

 

* An integer overflow flaw was found in the way the Linux kernel's Frame

Buffer device implementation mapped kernel memory to user space via the

mmap syscall. A local user able to access a frame buffer device file

(/dev/fb*) could possibly use this flaw to escalate their privileges on the

system. (CVE-2013-2596, Important)

 

* It was found that the Linux kernel's KVM implementation did not ensure

that the host CR4 control register value remained unchanged across VM

entries on the same virtual CPU. A local, unprivileged user could use this

flaw to cause a denial of service on the system. (CVE-2014-3690, Moderate)

 

* It was found that the parse_rock_ridge_inode_internal() function of the

Linux kernel's ISOFS implementation did not correctly check relocated

directories when processing Rock Ridge child link (CL) tags. An attacker

with physical access to the system could use a specially crafted ISO image

to crash the system or, potentially, escalate their privileges on the

system. (CVE-2014-5471, CVE-2014-5472, Low)

 

* A stack-based buffer overflow flaw was found in the TechnoTrend/Hauppauge

DEC USB device driver. A local user with write access to the corresponding

device could use this flaw to crash the kernel or, potentially, elevate

their privileges on the system. (CVE-2014-8884, Low)

 

Red Hat would like to thank Mellanox for reporting CVE-2014-8159, and Andy

Lutomirski for reporting CVE-2014-3690. The CVE-2015-1421 issue was

discovered by Sun Baoliang of Red Hat.

 

This update also fixes the following bugs:

 

* Previously, a NULL pointer check that is needed to prevent an oops in the

nfs_async_inode_return_delegation() function was removed. As a consequence,

a NFS4 client could terminate unexpectedly. The missing NULL pointer check

has been added back, and NFS4 client no longer crashes in this situation.

(BZ#1187638)

 

* Due to unbalanced multicast join and leave processing, the attempt to

leave a multicast group that had not previously completed a join became

unresponsive. This update resolves multiple locking issues in the IPoIB

multicast code that allowed multicast groups to be left before the joining

was entirely completed. Now, multicast join and leave failures or lockups

no longer occur in the described situation. (BZ#1187663)

 

* A failure to leave a multicast group which had previously been joined

prevented the attempt to unregister from the "sa" service. Multiple locking

issues in the IPoIB multicast join and leave processing have been fixed so

that leaving a group that has completed its join process is successful.

As a result, attempts to unregister from the "sa" service no longer lock up

due to leaked resources. (BZ#1187665)

 

* Due to a regression, when large reads which partially extended beyond the

end of the underlying device were done, the raw driver returned the EIO

error code instead of returning a short read covering the valid part of the

device. The underlying source code has been patched, and the raw driver now

returns a short read for the remainder of the device. (BZ#1195746)

 

All kernel users are advised to upgrade to these updated packages, which

contain backported patches to correct these issues. The system must be

rebooted for this update to take effect.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

For details on how to apply this update, refer to:

 

https://access.redhat.com/articles/11258

 

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

 

1034490 - CVE-2013-2596 kernel: integer overflow in fb_mmap

1134099 - CVE-2014-5471 CVE-2014-5472 kernel: isofs: unbound recursion when processing relocated directories

1153322 - CVE-2014-3690 kernel: kvm: vmx: invalid host cr4 handling across vm entries

1164266 - CVE-2014-8884 kernel: usb: buffer overflow in ttusb-dec

1181166 - CVE-2014-8159 kernel: infiniband: uverbs: unprotected physical memory access

1196581 - CVE-2015-1421 kernel: net: slab corruption from use after free on INIT collisions

 

6. Package List:

 

Red Hat Enterprise Linux HPC Node EUS (v. 6.5):

 

Source:

kernel-2.6.32-431.53.2.el6.src.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-431.53.2.el6.noarch.rpm

kernel-doc-2.6.32-431.53.2.el6.noarch.rpm

kernel-firmware-2.6.32-431.53.2.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-devel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-431.53.2.el6.x86_64.rpm

kernel-devel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-headers-2.6.32-431.53.2.el6.x86_64.rpm

perf-2.6.32-431.53.2.el6.x86_64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

 

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5):

 

Source:

kernel-2.6.32-431.53.2.el6.src.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-431.53.2.el6.x86_64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server EUS (v. 6.5):

 

Source:

kernel-2.6.32-431.53.2.el6.src.rpm

 

i386:

kernel-2.6.32-431.53.2.el6.i686.rpm

kernel-debug-2.6.32-431.53.2.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-431.53.2.el6.i686.rpm

kernel-debug-devel-2.6.32-431.53.2.el6.i686.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-431.53.2.el6.i686.rpm

kernel-devel-2.6.32-431.53.2.el6.i686.rpm

kernel-headers-2.6.32-431.53.2.el6.i686.rpm

perf-2.6.32-431.53.2.el6.i686.rpm

perf-debuginfo-2.6.32-431.53.2.el6.i686.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.i686.rpm

 

noarch:

kernel-abi-whitelists-2.6.32-431.53.2.el6.noarch.rpm

kernel-doc-2.6.32-431.53.2.el6.noarch.rpm

kernel-firmware-2.6.32-431.53.2.el6.noarch.rpm

 

ppc64:

kernel-2.6.32-431.53.2.el6.ppc64.rpm

kernel-bootwrapper-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debug-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debug-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debug-devel-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-431.53.2.el6.ppc64.rpm

kernel-devel-2.6.32-431.53.2.el6.ppc64.rpm

kernel-headers-2.6.32-431.53.2.el6.ppc64.rpm

perf-2.6.32-431.53.2.el6.ppc64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

 

s390x:

kernel-2.6.32-431.53.2.el6.s390x.rpm

kernel-debug-2.6.32-431.53.2.el6.s390x.rpm

kernel-debug-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

kernel-debug-devel-2.6.32-431.53.2.el6.s390x.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-431.53.2.el6.s390x.rpm

kernel-devel-2.6.32-431.53.2.el6.s390x.rpm

kernel-headers-2.6.32-431.53.2.el6.s390x.rpm

kernel-kdump-2.6.32-431.53.2.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

kernel-kdump-devel-2.6.32-431.53.2.el6.s390x.rpm

perf-2.6.32-431.53.2.el6.s390x.rpm

perf-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

 

x86_64:

kernel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debug-devel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-431.53.2.el6.x86_64.rpm

kernel-devel-2.6.32-431.53.2.el6.x86_64.rpm

kernel-headers-2.6.32-431.53.2.el6.x86_64.rpm

perf-2.6.32-431.53.2.el6.x86_64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional EUS (v. 6.5):

 

Source:

kernel-2.6.32-431.53.2.el6.src.rpm

 

i386:

kernel-debug-debuginfo-2.6.32-431.53.2.el6.i686.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-431.53.2.el6.i686.rpm

perf-debuginfo-2.6.32-431.53.2.el6.i686.rpm

python-perf-2.6.32-431.53.2.el6.i686.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.i686.rpm

 

ppc64:

kernel-debug-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-431.53.2.el6.ppc64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

python-perf-2.6.32-431.53.2.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-431.53.2.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

perf-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

python-perf-2.6.32-431.53.2.el6.s390x.rpm

python-perf-debuginfo-2.6.32-431.53.2.el6.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-431.53.2.el6.x86_64.rpm

perf-debuginfo-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-2.6.32-431.53.2.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-431.53.2.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-2013-2596

https://access.redhat.com/security/cve/CVE-2014-3690

https://access.redhat.com/security/cve/CVE-2014-5471

https://access.redhat.com/security/cve/CVE-2014-5472

https://access.redhat.com/security/cve/CVE-2014-8159

https://access.redhat.com/security/cve/CVE-2014-8884

https://access.redhat.com/security/cve/CVE-2015-1421

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 2015 Red Hat, Inc.

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