====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2011:0007-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:0007.html
Issue date:        2011-01-11
CVE Names:         CVE-2010-2492 CVE-2010-3067 CVE-2010-3078 
                   CVE-2010-3080 CVE-2010-3298 CVE-2010-3477 
                   CVE-2010-3861 CVE-2010-3865 CVE-2010-3874 
                   CVE-2010-3876 CVE-2010-3880 CVE-2010-4072 
                   CVE-2010-4073 CVE-2010-4074 CVE-2010-4075 
                   CVE-2010-4077 CVE-2010-4079 CVE-2010-4080 
                   CVE-2010-4081 CVE-2010-4082 CVE-2010-4083 
                   CVE-2010-4158 CVE-2010-4160 CVE-2010-4162 
                   CVE-2010-4163 CVE-2010-4242 CVE-2010-4248 
                   CVE-2010-4249 CVE-2010-4263 CVE-2010-4525 
                   CVE-2010-4668 
====================================================================
1. Summary:

Updated kernel packages that fix multiple security issues and several bugs
are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 Desktop (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

3. Description:

* Buffer overflow in eCryptfs. When /dev/ecryptfs has world writable
permissions (which it does not, by default, on Red Hat Enterprise Linux 6),
a local, unprivileged user could use this flaw to cause a denial of service
or possibly escalate their privileges. (CVE-2010-2492, Important)

* Integer overflow in the RDS protocol implementation could allow a local,
unprivileged user to cause a denial of service or escalate their
privileges. (CVE-2010-3865, Important)

* Missing boundary checks in the PPP over L2TP sockets implementation could
allow a local, unprivileged user to cause a denial of service or escalate
their privileges. (CVE-2010-4160, Important)

* NULL pointer dereference in the igb driver. If both Single Root I/O
Virtualization (SR-IOV) and promiscuous mode were enabled on an interface
using igb, it could result in a denial of service when a tagged VLAN packet
is received on that interface. (CVE-2010-4263, Important)

* Missing initialization flaw in the XFS file system implementation, and in
the network traffic policing implementation, could allow a local,
unprivileged user to cause an information leak. (CVE-2010-3078,
CVE-2010-3477, Moderate)

* NULL pointer dereference in the Open Sound System compatible sequencer
driver could allow a local, unprivileged user with access to /dev/sequencer
to cause a denial of service. /dev/sequencer is only accessible to root and
users in the audio group by default. (CVE-2010-3080, Moderate)

* Flaw in the ethtool IOCTL handler could allow a local user to cause an
information leak. (CVE-2010-3861, Moderate)

* Flaw in bcm_connect() in the Controller Area Network (CAN) Broadcast
Manager. On 64-bit systems, writing the socket address may overflow the
procname character array. (CVE-2010-3874, Moderate)

* Flaw in the module for monitoring the sockets of INET transport
protocols could allow a local, unprivileged user to cause a denial of
service. (CVE-2010-3880, Moderate)

* Missing boundary checks in the block layer implementation could allow a
local, unprivileged user to cause a denial of service. (CVE-2010-4162,
CVE-2010-4163, CVE-2010-4668, Moderate)

* NULL pointer dereference in the Bluetooth HCI UART driver could allow a
local, unprivileged user to cause a denial of service. (CVE-2010-4242,
Moderate)

* Flaw in the Linux kernel CPU time clocks implementation for the POSIX
clock interface could allow a local, unprivileged user to cause a denial of
service. (CVE-2010-4248, Moderate)

* Flaw in the garbage collector for AF_UNIX sockets could allow a local,
unprivileged user to trigger a denial of service. (CVE-2010-4249, Moderate)

* Missing upper bound integer check in the AIO implementation could allow a
local, unprivileged user to cause an information leak. (CVE-2010-3067, Low)

* Missing initialization flaws could lead to information leaks.
(CVE-2010-3298, CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4074,
CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081,
CVE-2010-4082, CVE-2010-4083, CVE-2010-4158, Low)

* Missing initialization flaw in KVM could allow a privileged host user
with access to /dev/kvm to cause an information leak. (CVE-2010-4525, Low)

Red Hat would like to thank Andre Osterhues for reporting CVE-2010-2492;
Thomas Pollet for reporting CVE-2010-3865; Dan Rosenberg for reporting
CVE-2010-4160, CVE-2010-3078, CVE-2010-3874, CVE-2010-4162, CVE-2010-4163,
CVE-2010-3298, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077,
CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083,
and CVE-2010-4158; Kosuke Tatsukawa for reporting CVE-2010-4263; Tavis
Ormandy for reporting CVE-2010-3080 and CVE-2010-3067; Kees Cook for
reporting CVE-2010-3861 and CVE-2010-4072; Nelson Elhage for reporting
CVE-2010-3880; Alan Cox for reporting CVE-2010-4242; Vegard Nossum for
reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; and
Stephan Mueller of atsec information security for reporting CVE-2010-4525.

4. Solution:

Users should upgrade to these updated packages, which contain
backported patches to correct these issues. Documentation for the bugs
fixed by this update will be available shortly from the Technical
Notes document, linked to in the References section. The system must
be rebooted for this update to take effect.

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

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.

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

611385 - CVE-2010-2492 kernel: ecryptfs_uid_hash() buffer overflow
629441 - CVE-2010-3067 kernel: do_io_submit() infoleak
630551 - CVE-2010-3080 kernel: /dev/sequencer open failure is not handled correctly
630804 - CVE-2010-3078 kernel: xfs: XFS_IOC_FSGETXATTR ioctl memory leak
633140 - CVE-2010-3298 kernel: drivers/net/usb/hso.c: prevent reading uninitialized memory
636386 - CVE-2010-3477 kernel: net/sched/act_police.c infoleak
641410 - CVE-2010-4242 kernel: missing tty ops write function presence check in hci_uart_tty_open()
646725 - CVE-2010-3861 kernel: heap contents leak from ETHTOOL_GRXCLSRLALL
647391 - kernel BUG at mm/migrate.c:113! [rhel-6.0.z]
647416 - CVE-2010-3865 kernel: iovec integer overflow in net/rds/rdma.c
648408 - Do not mix FMODE_ and O_ flags with break_lease() and may_open() [rhel-6.0.z]
648656 - CVE-2010-4072 kernel: ipc/shm.c: reading uninitialized stack memory
648658 - CVE-2010-4073 kernel: ipc/compat*.c: reading uninitialized stack memory
648659 - CVE-2010-4074 kernel: drivers/usb/serial/mos*.c: reading uninitialized stack memory
648660 - CVE-2010-4075 kernel: drivers/serial/serial_core.c: reading uninitialized stack memory
648663 - CVE-2010-4077 kernel: drivers/char/nozomi.c: reading uninitialized stack memory
648666 - CVE-2010-4079 kernel: drivers/video/ivtv/ivtvfb.c: reading uninitialized stack memory
648669 - CVE-2010-4080 kernel: drivers/sound/pci/rme9652/hdsp.c: reading uninitialized stack memory
648670 - CVE-2010-4081 kernel: drivers/sound/pci/rme9652/hdspm.c: reading uninitialized stack memory
648671 - CVE-2010-4082 kernel: drivers/video/via/ioctl.c: reading uninitialized stack memory
648673 - CVE-2010-4083 kernel: ipc/sem.c: reading uninitialized stack memory
649695 - CVE-2010-3874 kernel: CAN minor heap overflow
649715 - CVE-2010-3876 kernel: net/packet/af_packet.c: reading uninitialized stack memory
651264 - CVE-2010-3880 kernel: logic error in INET_DIAG bytecode auditing
651698 - CVE-2010-4158 kernel: socket filters infoleak
651892 - CVE-2010-4160 kernel: L2TP send buffer allocation size overflows
652529 - CVE-2010-4162 kernel: bio: integer overflow page count when mapping/copying user data
652957 - CVE-2010-4163 CVE-2010-4668 kernel: panic when submitting certain 0-length I/O requests
653340 - [kvm] VIRT-IO NIC state is reported as 'unknown' on vm running over RHEL6 host [rhel-6.0.z]
656264 - CVE-2010-4248 kernel: posix-cpu-timers: workaround to suppress the problems with mt exec
656756 - CVE-2010-4249 kernel: unix socket local dos
658879 - kernel 2.6.32-84.el6 breaks systemtap [rhel-6.0.z]
659611 - lpfc: Fixed crashes for BUG_ONs hit in the lpfc_abort_handler [rhel-6.0.z]
660188 - CVE-2010-4263 kernel: igb panics when receiving tag vlan packet
660244 - lpfc: Set heartbeat timer off by default [rhel-6.0.z]
660591 - neighbour update causes an Oops when using tunnel device [rhel-6.0.z]
665470 - CVE-2010-4525 kvm: x86: zero kvm_vcpu_events->interrupt.pad infoleak

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
kernel-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-71.14.1.el6.i686.rpm
kernel-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-headers-2.6.32-71.14.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-71.14.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.14.1.el6.noarch.rpm
perf-2.6.32-71.14.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-71.14.1.el6.x86_64.rpm
kernel-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-headers-2.6.32-71.14.1.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:

noarch:
kernel-doc-2.6.32-71.14.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.14.1.el6.noarch.rpm
perf-2.6.32-71.14.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-71.14.1.el6.x86_64.rpm
kernel-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-headers-2.6.32-71.14.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
kernel-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-71.14.1.el6.i686.rpm
kernel-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-headers-2.6.32-71.14.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-71.14.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.14.1.el6.noarch.rpm
perf-2.6.32-71.14.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-71.14.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-71.14.1.el6.ppc64.rpm
kernel-debug-2.6.32-71.14.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-71.14.1.el6.ppc64.rpm
kernel-devel-2.6.32-71.14.1.el6.ppc64.rpm
kernel-headers-2.6.32-71.14.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-71.14.1.el6.s390x.rpm
kernel-debug-2.6.32-71.14.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-71.14.1.el6.s390x.rpm
kernel-devel-2.6.32-71.14.1.el6.s390x.rpm
kernel-headers-2.6.32-71.14.1.el6.s390x.rpm
kernel-kdump-2.6.32-71.14.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-71.14.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-71.14.1.el6.s390x.rpm

x86_64:
kernel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-71.14.1.el6.x86_64.rpm
kernel-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-headers-2.6.32-71.14.1.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
kernel-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-71.14.1.el6.i686.rpm
kernel-devel-2.6.32-71.14.1.el6.i686.rpm
kernel-headers-2.6.32-71.14.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-71.14.1.el6.noarch.rpm
kernel-firmware-2.6.32-71.14.1.el6.noarch.rpm
perf-2.6.32-71.14.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-71.14.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-71.14.1.el6.x86_64.rpm
kernel-devel-2.6.32-71.14.1.el6.x86_64.rpm
kernel-headers-2.6.32-71.14.1.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-2492.html
https://www.redhat.com/security/data/cve/CVE-2010-3067.html
https://www.redhat.com/security/data/cve/CVE-2010-3078.html
https://www.redhat.com/security/data/cve/CVE-2010-3080.html
https://www.redhat.com/security/data/cve/CVE-2010-3298.html
https://www.redhat.com/security/data/cve/CVE-2010-3477.html
https://www.redhat.com/security/data/cve/CVE-2010-3861.html
https://www.redhat.com/security/data/cve/CVE-2010-3865.html
https://www.redhat.com/security/data/cve/CVE-2010-3874.html
https://www.redhat.com/security/data/cve/CVE-2010-3876.html
https://www.redhat.com/security/data/cve/CVE-2010-3880.html
https://www.redhat.com/security/data/cve/CVE-2010-4072.html
https://www.redhat.com/security/data/cve/CVE-2010-4073.html
https://www.redhat.com/security/data/cve/CVE-2010-4074.html
https://www.redhat.com/security/data/cve/CVE-2010-4075.html
https://www.redhat.com/security/data/cve/CVE-2010-4077.html
https://www.redhat.com/security/data/cve/CVE-2010-4079.html
https://www.redhat.com/security/data/cve/CVE-2010-4080.html
https://www.redhat.com/security/data/cve/CVE-2010-4081.html
https://www.redhat.com/security/data/cve/CVE-2010-4082.html
https://www.redhat.com/security/data/cve/CVE-2010-4083.html
https://www.redhat.com/security/data/cve/CVE-2010-4158.html
https://www.redhat.com/security/data/cve/CVE-2010-4160.html
https://www.redhat.com/security/data/cve/CVE-2010-4162.html
https://www.redhat.com/security/data/cve/CVE-2010-4163.html
https://www.redhat.com/security/data/cve/CVE-2010-4242.html
https://www.redhat.com/security/data/cve/CVE-2010-4248.html
https://www.redhat.com/security/data/cve/CVE-2010-4249.html
https://www.redhat.com/security/data/cve/CVE-2010-4263.html
https://www.redhat.com/security/data/cve/CVE-2010-4525.html
https://www.redhat.com/security/data/cve/CVE-2010-4668.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/search/

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.