Synopsis:	Important: kernel security, bug fix, and enhancement update
Issue date:	2011-05-10
CVE Names:	CVE-2010-4250 CVE-2010-4565 CVE-2010-4649
                   CVE-2011-0006 CVE-2011-0711 CVE-2011-0712
                   CVE-2011-0726 CVE-2011-1013 CVE-2011-1016
                   CVE-2011-1019 CVE-2011-1044 CVE-2011-1079
                   CVE-2011-1080 CVE-2011-1093 CVE-2011-1573

Security fixes:

* An integer overflow flaw in ib_uverbs_poll_cq() could allow a local,
unprivileged user to cause a denial of service or escalate their
privileges. (CVE-2010-4649, Important)

* An integer signedness flaw in drm_modeset_ctl() could allow a local,
unprivileged user to cause a denial of service or escalate their
privileges. (CVE-2011-1013, Important)

* The Radeon GPU drivers in the Linux kernel were missing sanity checks 
for the Anti Aliasing (AA) resolve register values which could allow a 
local, unprivileged user to cause a denial of service or escalate their 
privileges on systems using a graphics card from the ATI Radeon R300, 
R400, or R500 family of cards. (CVE-2011-1016, Important)

* A flaw in dccp_rcv_state_process() could allow a remote attacker to
cause a denial of service, even when the socket was already closed.
(CVE-2011-1093, Important)

* A flaw in the Linux kernel's Stream Control Transmission Protocol 
(SCTP) implementation could allow a remote attacker to cause a denial of 
service if the sysctl "net.sctp.addip_enable" and "auth_enable" 
variables were turned on (they are off by default). (CVE-2011-1573, 
Important)

* A memory leak in the inotify_init() system call. In some cases, it 
could leak a group, which could allow a local, unprivileged user to 
eventually cause a denial of service. (CVE-2010-4250, Moderate)

* A missing validation of a null-terminated string data structure 
element in bnep_sock_ioctl() could allow a local user to cause an 
information leak or a denial of service. (CVE-2011-1079, Moderate)

* An information leak in bcm_connect() in the Controller Area Network 
(CAN) Broadcast Manager implementation could allow a local, unprivileged 
user to leak kernel mode addresses in "/proc/net/can-bcm". 
(CVE-2010-4565, Low)

* A flaw was found in the Linux kernel's Integrity Measurement 
Architecture (IMA) implementation. When SELinux was disabled, adding an 
IMA rule which was supposed to be processed by SELinux would cause 
ima_match_rules() to always succeed, ignoring any remaining rules. 
(CVE-2011-0006, Low)

* A missing initialization flaw in the XFS file system implementation 
could lead to an information leak. (CVE-2011-0711, Low)

* Buffer overflow flaws in snd_usb_caiaq_audio_init() and
snd_usb_caiaq_midi_init() could allow a local, unprivileged user with
access to a Native Instruments USB audio device to cause a denial of
service or escalate their privileges. (CVE-2011-0712, Low)

* The start_code and end_code values in "/proc/[pid]/stat" were not
protected. In certain scenarios, this flaw could be used to defeat 
Address Space Layout Randomization (ASLR). (CVE-2011-0726, Low)

* A flaw in dev_load() could allow a local user who has the 
CAP_NET_ADMIN capability to load arbitrary modules from "/lib/modules/", 
instead of only netdev modules. (CVE-2011-1019, Low)

* A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user 
to cause an information leak. (CVE-2011-1044, Low)

* A missing validation of a null-terminated string data structure 
element in do_replace() could allow a local user who has the 
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)

This update also fixes various bugs.

This update also adds an enhancement.

* This update provides VLAN null tagging support (VLAN ID 0 can be used 
in tags).

The system must be rebooted for this update to take effect.

SL 6.x

       SRPMS:
kernel-2.6.32-71.29.1.el6.src.rpm
       i386:
kernel-2.6.32-71.29.1.el6.i686.rpm
kernel-debug-2.6.32-71.29.1.el6.i686.rpm
kernel-debug-devel-2.6.32-71.29.1.el6.i686.rpm
kernel-devel-2.6.32-71.29.1.el6.i686.rpm
kernel-doc-2.6.32-71.29.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.29.1.el6.noarch.rpm
kernel-headers-2.6.32-71.29.1.el6.i686.rpm
perf-2.6.32-71.29.1.el6.noarch.rpm

       x86_64:
kernel-2.6.32-71.29.1.el6.x86_64.rpm
kernel-debug-2.6.32-71.29.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.29.1.el6.x86_64.rpm
kernel-devel-2.6.32-71.29.1.el6.x86_64.rpm
kernel-doc-2.6.32-71.29.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.29.1.el6.noarch.rpm
kernel-headers-2.6.32-71.29.1.el6.x86_64.rpm
perf-2.6.32-71.29.1.el6.noarch.rpm

- Scientific Linux Development Team