RHSA-2009:0473-01 Important: kernel security and bug fix update
Posted on: 05/07/2009 02:15 PM

A new update is available for Red Hat Enterprise Linux. Here the announcement:

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Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2009:0473-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-0473.html
Issue date: 2009-05-07
CVE Names: CVE-2008-4307 CVE-2009-0787 CVE-2009-0834
CVE-2009-1336 CVE-2009-1337
=====================================================================

1. Summary:

Updated kernel packages that fix several security issues and several bugs
are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64

3. Description:

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

This update fixes the following security issues:

* a logic error was found in the do_setlk() function of the Linux kernel
Network File System (NFS) implementation. If a signal interrupted a lock
request, the local POSIX lock was incorrectly created. This could cause a
denial of service on the NFS server if a file descriptor was closed before
its corresponding lock request returned. (CVE-2008-4307, Important)

* a deficiency was found in the Linux kernel system call auditing
implementation on 64-bit systems. This could allow a local, unprivileged
user to circumvent a system call audit configuration, if that configuration
filtered based on the "syscall" number or arguments.
(CVE-2009-0834, Important)

* the exit_notify() function in the Linux kernel did not properly reset the
exit signal if a process executed a set user ID (setuid) application before
exiting. This could allow a local, unprivileged user to elevate their
privileges. (CVE-2009-1337, Important)

* a flaw was found in the ecryptfs_write_metadata_to_contents() function of
the Linux kernel eCryptfs implementation. On systems with a 4096 byte
page-size, this flaw may have caused 4096 bytes of uninitialized kernel
memory to be written into the eCryptfs file headers, leading to an
information leak. Note: Encrypted files created on systems running the
vulnerable version of eCryptfs may contain leaked data in the eCryptfs file
headers. This update does not remove any leaked data. Refer to the
Knowledgebase article in the References section for further information.
(CVE-2009-0787, Moderate)

* the Linux kernel implementation of the Network File System (NFS) did not
properly initialize the file name limit in the nfs_server data structure.
This flaw could possibly lead to a denial of service on a client mounting
an NFS share. (CVE-2009-1336, Moderate)

This update also fixes the following bugs:

* the enic driver (Cisco 10G Ethernet) did not operate under
virtualization. (BZ#472474)

* network interfaces using the IBM eHEA Ethernet device driver could not be
successfully configured under low-memory conditions. (BZ#487035)

* bonding with the "arp_validate=3" option may have prevented fail overs.
(BZ#488064)

* when running under virtualization, the acpi-cpufreq module wrote "Domain
attempted WRMSR" errors to the dmesg log. (BZ#488928)

* NFS clients may have experienced deadlocks during unmount. (BZ#488929)

* the ixgbe driver double counted the number of received bytes and packets.
(BZ#489459)

* the Wacom Intuos3 Lens Cursor device did not work correctly with the
Wacom Intuos3 12x12 tablet. (BZ#489460)

* on the ItaniumĀ® architecture, nanosleep() caused commands which used it,
such as sleep and usleep, to sleep for one second more than expected.
(BZ#490434)

* a panic and corruption of slab cache data structures occurred on 64-bit
PowerPC systems when clvmd was running. (BZ#491677)

* the NONSTOP_TSC feature did not perform correctly on the IntelĀ®
microarchitecture (Nehalem) when running in 32-bit mode. (BZ#493356)

* keyboards may not have functioned on IBM eServer System p machines after
a certain point during installation or afterward. (BZ#494293)

* using Device Mapper Multipathing with the qla2xxx driver resulted in
frequent path failures. (BZ#495635)

* if the hypervisor was booted with the dom0_max_vcpus parameter set to
less than the actual number of CPUs in the system, and the cpuspeed service
was started, the hypervisor could crash. (BZ#495931)

* using Openswan to provide an IPsec virtual private network eventually
resulted in a CPU soft lockup and a system crash. (BZ#496044)

* it was possible for posix_locks_deadlock() to enter an infinite loop
(under the BKL), causing a system hang. (BZ#496842)

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.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

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

456282 - CVE-2008-4307 Kernel BUG() in locks_remove_flock
487035 - ehea network configuration fails during boot after fsck
487990 - CVE-2009-0834 kernel: x86-64: syscall-audit: 32/64 syscall hole
488064 - [RHEL-5.3] ARP packets aren't received by backup slaves breaking arp_validate=3
488928 - xm dmesg printk spam -- Domain attempted WRMSR 00000000000000e8 from 00000016:3d0e9470 to 00000000:00000000
488929 - Deadlock in flush_workqueue() results in hung nfs clients
489459 - [Intel 5.4 bug] ixgbe driver double counts RX byte count
489460 - Wacom driver does not with with mouse/lens device on intuos3
490434 - [5.3] The nanosleep() syscall sleeps one second longer.
491254 - CVE-2009-0787 kernel: ecryptfs file header infoleak
491677 - slab corruption with dlm and clvmd on ppc64
493356 - [Intel 5.4 FEAT] TSC keeps running in C3+[incremental patch for 5.3.z]
493771 - CVE-2009-1337 kernel: exit_notify: kill the wrong capable(CAP_KILL) check
494074 - CVE-2009-1336 kernel: nfsv4 client can be crashed by stating a long filename
494293 - RHEL5-U2 Installation hangs on p-series--7029, 2078
495635 - Frequent path failures during I/O on DM multipath devices
495929 - [5.3][Xen] APERF/MPERF patch update
495931 - [5.3][Xen] dom0 panic when we use dom0_max_vcpus=2.
496044 - Running Openswan ipsec vpn server with rhel-5.3 kernel-2.6.18-128.el5 causes crash
496842 - softlockups due to infinite loops in posix_locks_deadlock

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-128.1.10.el5.src.rpm

i386:
kernel-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.i686.rpm
kernel-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-headers-2.6.18-128.1.10.el5.i386.rpm
kernel-xen-2.6.18-128.1.10.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-xen-devel-2.6.18-128.1.10.el5.i686.rpm

noarch:
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm

x86_64:
kernel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.x86_64.rpm
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.1.10.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-128.1.10.el5.src.rpm

i386:
kernel-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.i686.rpm
kernel-devel-2.6.18-128.1.10.el5.i686.rpm
kernel-headers-2.6.18-128.1.10.el5.i386.rpm
kernel-xen-2.6.18-128.1.10.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.1.10.el5.i686.rpm
kernel-xen-devel-2.6.18-128.1.10.el5.i686.rpm

ia64:
kernel-2.6.18-128.1.10.el5.ia64.rpm
kernel-debug-2.6.18-128.1.10.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.ia64.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.ia64.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.ia64.rpm
kernel-devel-2.6.18-128.1.10.el5.ia64.rpm
kernel-headers-2.6.18-128.1.10.el5.ia64.rpm
kernel-xen-2.6.18-128.1.10.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-128.1.10.el5.ia64.rpm
kernel-xen-devel-2.6.18-128.1.10.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm

ppc:
kernel-2.6.18-128.1.10.el5.ppc64.rpm
kernel-debug-2.6.18-128.1.10.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.ppc64.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.ppc64.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.ppc64.rpm
kernel-devel-2.6.18-128.1.10.el5.ppc64.rpm
kernel-headers-2.6.18-128.1.10.el5.ppc.rpm
kernel-headers-2.6.18-128.1.10.el5.ppc64.rpm
kernel-kdump-2.6.18-128.1.10.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-128.1.10.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-128.1.10.el5.ppc64.rpm

s390x:
kernel-2.6.18-128.1.10.el5.s390x.rpm
kernel-debug-2.6.18-128.1.10.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.s390x.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.s390x.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.s390x.rpm
kernel-devel-2.6.18-128.1.10.el5.s390x.rpm
kernel-headers-2.6.18-128.1.10.el5.s390x.rpm
kernel-kdump-2.6.18-128.1.10.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-128.1.10.el5.s390x.rpm
kernel-kdump-devel-2.6.18-128.1.10.el5.s390x.rpm

x86_64:
kernel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.1.10.el5.x86_64.rpm
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.1.10.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.1.10.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4307
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0787
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1336
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1337
http://www.redhat.com/security/updates/classification/#important
http://kbase.redhat.com/faq/docs/DOC-16748

8. Contact:

The Red Hat security contact is lt;secalert@redhat.comgt;. More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2009 Red Hat, Inc.
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