Scientific Linux SL6: Important Kernel Security and Bug Fix Update

Date: Tue, 22 Nov 2011 08:36:45 -0600
Reply-To: Pat Riehecky 
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Organization: Fermilab
Subject: FASTBUGS for SL 5x i386, x86_64 now available
MIME-Version: 1.0

The following FASTBUGS have been uploaded to

i386:
hmaccalc-0.9.6-4.el5.i386.rpm
iproute-2.6.18-13.el5.i386.rpm
less-436-9.el5.i386.rpm
man-pages-2.39-20.el5.noarch.rpm
ntp-4.2.2p1-15.el5_7.1.i386.rpm
PyXML-0.8.4-6.el5.i386.rpm
qt-3.3.6-25.el5.i386.rpm
qt-config-3.3.6-25.el5.i386.rpm
qt-designer-3.3.6-25.el5.i386.rpm
qt-devel-3.3.6-25.el5.i386.rpm
qt-devel-docs-3.3.6-25.el5.i386.rpm
qt-MySQL-3.3.6-25.el5.i386.rpm
qt-ODBC-3.3.6-25.el5.i386.rpm
qt-PostgreSQL-3.3.6-25.el5.i386.rpm

x86_64:
hmaccalc-0.9.6-4.el5.x86_64.rpm
iproute-2.6.18-13.el5.x86_64.rpm
less-436-9.el5.x86_64.rpm
man-pages-2.39-20.el5.noarch.rpm
ntp-4.2.2p1-15.el5_7.1.x86_64.rpm
PyXML-0.8.4-6.el5.x86_64.rpm
qt-3.3.6-25.el5.i386.rpm
qt-3.3.6-25.el5.x86_64.rpm
qt-config-3.3.6-25.el5.x86_64.rpm
qt-designer-3.3.6-25.el5.x86_64.rpm
qt-devel-3.3.6-25.el5.i386.rpm
qt-devel-3.3.6-25.el5.x86_64.rpm
qt-devel-docs-3.3.6-25.el5.x86_64.rpm
qt-MySQL-3.3.6-25.el5.x86_64.rpm
qt-ODBC-3.3.6-25.el5.x86_64.rpm
qt-PostgreSQL-3.3.6-25.el5.x86_64.rpm
Date: Wed, 23 Nov 2011 11:29:04 -0600
Reply-To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Important: kernel on SL6.x i386/x86_64
Comments: To: This email address is being protected from spambots. You need JavaScript enabled to view it.

Synopsis: Important: kernel security and bug fix update
Issue Date: 2011-11-22
CVE Numbers: CVE-2011-1577
 CVE-2011-2494
 CVE-2011-2699
 CVE-2011-2905
 CVE-2011-1162
 CVE-2011-3188
 CVE-2011-3191
 CVE-2011-3353
 CVE-2011-3359
 CVE-2011-3363
 CVE-2011-3593
 CVE-2011-4326

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issues:

* IPv6 fragment identification value generation could allow a remote
attacker to disrupt a target system's networking, preventing legitimate
users from accessing its services. (CVE-2011-2699, Important)

* A signedness issue was found in the Linux kernel's CIFS (Common Internet
File System) implementation. A malicious CIFS server could send a
specially-crafted response to a directory read request that would result in
a denial of service or privilege escalation on a system that has a CIFS
share mounted. (CVE-2011-3191, Important)

* A flaw was found in the way the Linux kernel handled fragmented IPv6 UDP
datagrams over the bridge with UDP Fragmentation Offload (UFO)
functionality on. A remote attacker could use this flaw to cause a denial
of service. (CVE-2011-4326, Important)

* The way IPv4 and IPv6 protocol sequence numbers and fragment IDs were
generated could allow a man-in-the-middle attacker to inject packets and
possibly hijack connections. Protocol sequence numbers and fragment IDs are
now more random. (CVE-2011-3188, Moderate)

* A buffer overflow flaw was found in the Linux kernel's FUSE (Filesystem
in Userspace) implementation. A local user in the fuse group who has access
to mount a FUSE file system could use this flaw to cause a denial of
service. (CVE-2011-3353, Moderate)

* A flaw was found in the b43 driver in the Linux kernel. If a system had
an active wireless interface that uses the b43 driver, an attacker able to
send a specially-crafted frame to that interface could cause a denial of
service. (CVE-2011-3359, Moderate)

* A flaw was found in the way CIFS shares with DFS referrals at their root
were handled. An attacker on the local network who is able to deploy a
malicious CIFS server could create a CIFS network share that, when mounted,
would cause the client system to crash. (CVE-2011-3363, Moderate)

* A flaw was found in the way the Linux kernel handled VLAN 0 frames with
the priority tag set. When using certain network drivers, an attacker on
the local network could use this flaw to cause a denial of service.
(CVE-2011-3593, Moderate)

* A flaw in the way memory containing security-related data was handled in
tpm_read() could allow a local, unprivileged user to read the results of a
previously run TPM command. (CVE-2011-1162, Low)

* A heap overflow flaw was found in the Linux kernel's EFI GUID Partition
Table (GPT) implementation. A local attacker could use this flaw to cause
a denial of service by mounting a disk that contains specially-crafted
partition tables. (CVE-2011-1577, Low)

* The I/O statistics from the taskstats subsystem could be read without
any restrictions. A local, unprivileged user could use this flaw to gather
confidential information, such as the length of a password used in a
process. (CVE-2011-2494, Low)

* It was found that the perf tool, a part of the Linux kernel's Performance
Events implementation, could load its configuration file from the current
working directory. If a local user with access to the perf tool were
tricked into running perf in a directory that contains a specially-crafted
configuration file, it could cause perf to overwrite arbitrary files and
directories accessible to that user. (CVE-2011-2905, Low)

This update also fixes various bugs.

SL6:
 i386
 kernel-2.6.32-131.21.1.el6.i686.rpm
 kernel-debug-2.6.32-131.21.1.el6.i686.rpm
 kernel-debug-debuginfo-2.6.32-131.21.1.el6.i686.rpm
 kernel-debug-devel-2.6.32-131.21.1.el6.i686.rpm
 kernel-debuginfo-2.6.32-131.21.1.el6.i686.rpm
 kernel-debuginfo-common-i686-2.6.32-131.21.1.el6.i686.rpm
 kernel-devel-2.6.32-131.21.1.el6.i686.rpm
 kernel-headers-2.6.32-131.21.1.el6.i686.rpm
 perf-2.6.32-131.21.1.el6.i686.rpm
 perf-debuginfo-2.6.32-131.21.1.el6.i686.rpm
 noarch
 kernel-doc-2.6.32-131.21.1.el6.noarch.rpm
 kernel-firmware-2.6.32-131.21.1.el6.noarch.rpm
 x86_64
 kernel-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-debug-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-debug-debuginfo-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-debug-devel-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-debuginfo-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-debuginfo-common-x86_64-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-devel-2.6.32-131.21.1.el6.x86_64.rpm
 kernel-headers-2.6.32-131.21.1.el6.x86_64.rpm
 perf-2.6.32-131.21.1.el6.x86_64.rpm
 perf-debuginfo-2.6.32-131.21.1.el6.x86_64.rpm

- Scientific Linux Development Team