Red Hat: 2012:1347-01: kernel: Important Advisory
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
* A flaw was found in the way socket buffers (skb) requiring TSO (TCP
segment offloading) were handled by the sfc driver. If the skb did not fit
within the minimum-size of the transmission queue, the network card could
repeatedly reset itself. A remote attacker could use this flaw to cause a
denial of service. (CVE-2012-3412, Important)
* A buffer overflow flaw was found in the hfs_bnode_read() function in the
HFS Plus (HFS+) file system implementation in the Linux kernel. A local
user able to mount a specially-crafted HFS+ file system image could use
this flaw to cause a denial of service or escalate their privileges.
(CVE-2012-2319, Low)
Red Hat would like to thank Ben Hutchings of Solarflare (tm) for reporting
CVE-2012-3412.
This update also fixes the following bug:
* Some subsystems clear the TIF_SIGPENDING flag during error handling in
fork() paths. Previously, if the flag was cleared, the ERESTARTNOINTR error
code could be returned. The underlying source code has been modified so
that the error code is no longer returned. (BZ#855754)
Users should 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/knowledge/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-2012-2319.html https://www.redhat.com/security/data/cve/CVE-2012-3412.html https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux EUS (v. 5.6 server):
Source:
kernel-2.6.18-238.45.1.el5.src.rpm
i386:
kernel-2.6.18-238.45.1.el5.i686.rpm
kernel-PAE-2.6.18-238.45.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-238.45.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-238.45.1.el5.i686.rpm
kernel-debug-2.6.18-238.45.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-238.45.1.el5.i686.rpm
kernel-debug-devel-2.6.18-238.45.1.el5.i686.rpm
kernel-debuginfo-2.6.18-238.45.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-238.45.1.el5.i686.rpm
kernel-devel-2.6.18-238.45.1.el5.i686.rpm
kernel-headers-2.6.18-238.45.1.el5.i386.rpm
kernel-xen-2.6.18-238.45.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-238.45.1.el5.i686.rpm
kernel-xen-devel-2.6.18-238.45.1.el5.i686.rpm
ia64:
kernel-2.6.18-238.45.1.el5.ia64.rpm
kernel-debug-2.6.18-238.45.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-238.45.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-238.45.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-238.45.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-238.45.1.el5.ia64.rpm
kernel-devel-2.6.18-238.45.1.el5.ia64.rpm
kernel-headers-2.6.18-238.45.1.el5.ia64.rpm
kernel-xen-2.6.18-238.45.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-238.45.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-238.45.1.el5.ia64.rpm
noarch:
kernel-doc-2.6.18-238.45.1.el5.noarch.rpm
ppc:
kernel-2.6.18-238.45.1.el5.ppc64.rpm
kernel-debug-2.6.18-238.45.1.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-238.45.1.el5.ppc64.rpm
kernel-debug-devel-2.6.18-238.45.1.el5.ppc64.rpm
kernel-debuginfo-2.6.18-238.45.1.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-238.45.1.el5.ppc64.rpm
kernel-devel-2.6.18-238.45.1.el5.ppc64.rpm
kernel-headers-2.6.18-238.45.1.el5.ppc.rpm
kernel-headers-2.6.18-238.45.1.el5.ppc64.rpm
kernel-kdump-2.6.18-238.45.1.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-238.45.1.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-238.45.1.el5.ppc64.rpm
s390x:
kernel-2.6.18-238.45.1.el5.s390x.rpm
kernel-debug-2.6.18-238.45.1.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-238.45.1.el5.s390x.rpm
kernel-debug-devel-2.6.18-238.45.1.el5.s390x.rpm
kernel-debuginfo-2.6.18-238.45.1.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-238.45.1.el5.s390x.rpm
kernel-devel-2.6.18-238.45.1.el5.s390x.rpm
kernel-headers-2.6.18-238.45.1.el5.s390x.rpm
kernel-kdump-2.6.18-238.45.1.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-238.45.1.el5.s390x.rpm
kernel-kdump-devel-2.6.18-238.45.1.el5.s390x.rpm
x86_64:
kernel-2.6.18-238.45.1.el5.x86_64.rpm
kernel-debug-2.6.18-238.45.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-238.45.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-238.45.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-238.45.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-238.45.1.el5.x86_64.rpm
kernel-devel-2.6.18-238.45.1.el5.x86_64.rpm
kernel-headers-2.6.18-238.45.1.el5.x86_64.rpm
kernel-xen-2.6.18-238.45.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-238.45.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-238.45.1.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 two security issues and one bug are nowavailable for Red Hat Enterprise Linux 5.6 Extended Update Support.The Red Hat Security Response Team has rated this update as havingimportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux EUS (v. 5.6 server) - i386, ia64, noarch, ppc, s390x, x86_64
Bugs Fixed
819471 - CVE-2012-2319 kernel: Buffer overflow in the HFS plus filesystem (different issue than CVE-2009-4020)
844714 - CVE-2012-3412 kernel: sfc: potential remote denial of service through TCP MSS option