Red Hat: 2014:0108-01: kernel: Moderate Advisory
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
* It was found that the Xen hypervisor did not always lock
'page_alloc_lock' and 'grant_table.lock' in the same order. This could
potentially lead to a deadlock. A malicious guest administrator could use
this flaw to cause a denial of service on the host. (CVE-2013-4494,
Moderate)
Red Hat would like to thank the Xen project for reporting this issue.
This update also fixes the following bugs:
* A recent patch to the CIFS code that introduced the NTLMSSP
(NT LAN Manager Security Support Provider) authentication mechanism caused
a regression in CIFS behavior. As a result of the regression, an encryption
key that is returned during the SMB negotiation protocol response was only
used for the first session that was created on the SMB client. Any
subsequent mounts to the same server did not use the encryption key
returned by the initial negotiation with the server. As a consequence, it
was impossible to mount multiple SMB shares with different credentials to
the same server. A patch has been applied to correct this problem so that
an encryption key or a server challenge is now provided for every SMB
session during the SMB negotiation protocol response. (BZ#1029865)
* The igb driver previously used a 16-bit mask when writing values of the
flow control high-water mark to hardware registers on a network device.
Consequently, the values were truncated on some network devices, disrupting
the flow control. A patch has been applied to the igb driver so that it now
uses a 32-bit mask as expected. (BZ#1041694)
* The IPMI driver did not properly handle kernel panic messages.
Consequently, when a kernel panic occurred on a system that was utilizing
IPMI without Kdump being set up, a second kernel panic could be triggered.
A patch has been applied to the IPMI driver to fix this problem, and a
message handler now properly waits for a response to panic event messages.
(BZ#1049731)
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.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258
To install kernel packages manually, use "rpm -ivh [package]". Do not use
"rpm -Uvh" as that will remove the running kernel binaries from your
system. You may use "rpm -e" to remove old kernels after determining that
the new kernel functions properly on your system.
References
https://www.redhat.com/security/data/cve/CVE-2013-4494.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
kernel-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.i686.rpm
kernel-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-headers-2.6.18-371.4.1.el5.i386.rpm
kernel-xen-2.6.18-371.4.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-xen-devel-2.6.18-371.4.1.el5.i686.rpm
noarch:
kernel-doc-2.6.18-371.4.1.el5.noarch.rpm
x86_64:
kernel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.x86_64.rpm
kernel-devel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-headers-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-371.4.1.el5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
kernel-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.i686.rpm
kernel-devel-2.6.18-371.4.1.el5.i686.rpm
kernel-headers-2.6.18-371.4.1.el5.i386.rpm
kernel-xen-2.6.18-371.4.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-371.4.1.el5.i686.rpm
kernel-xen-devel-2.6.18-371.4.1.el5.i686.rpm
ia64:
kernel-2.6.18-371.4.1.el5.ia64.rpm
kernel-debug-2.6.18-371.4.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.ia64.rpm
kernel-devel-2.6.18-371.4.1.el5.ia64.rpm
kernel-headers-2.6.18-371.4.1.el5.ia64.rpm
kernel-xen-2.6.18-371.4.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-371.4.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-371.4.1.el5.ia64.rpm
noarch:
kernel-doc-2.6.18-371.4.1.el5.noarch.rpm
ppc:
kernel-2.6.18-371.4.1.el5.ppc64.rpm
kernel-debug-2.6.18-371.4.1.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.ppc64.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.ppc64.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.ppc64.rpm
kernel-devel-2.6.18-371.4.1.el5.ppc64.rpm
kernel-headers-2.6.18-371.4.1.el5.ppc.rpm
kernel-headers-2.6.18-371.4.1.el5.ppc64.rpm
kernel-kdump-2.6.18-371.4.1.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-371.4.1.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-371.4.1.el5.ppc64.rpm
s390x:
kernel-2.6.18-371.4.1.el5.s390x.rpm
kernel-debug-2.6.18-371.4.1.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.s390x.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.s390x.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.s390x.rpm
kernel-devel-2.6.18-371.4.1.el5.s390x.rpm
kernel-headers-2.6.18-371.4.1.el5.s390x.rpm
kernel-kdump-2.6.18-371.4.1.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-371.4.1.el5.s390x.rpm
kernel-kdump-devel-2.6.18-371.4.1.el5.s390x.rpm
x86_64:
kernel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-371.4.1.el5.x86_64.rpm
kernel-devel-2.6.18-371.4.1.el5.x86_64.rpm
kernel-headers-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-371.4.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-371.4.1.el5.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/#package
Topic
Updated kernel packages that fix one security issue and three bugs are nowavailable for Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64
Bugs Fixed
1026243 - CVE-2013-4494 kernel: xen: Lock order reversal between page allocation and grant table locks