Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory: Important

Topic

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.

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 Itanium(r) 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 Intel(r)
  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.

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 i386
• Red Hat Enterprise Linux Server - AUS 5.3 x86_64
• Red Hat Enterprise Linux Server - AUS 5.3 ia64
• Red Hat Enterprise Linux Server - AUS 5.3 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.3 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.3 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

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

CVEs

• CVE-2009-0834
• CVE-2008-4307
• CVE-2009-1337
• CVE-2009-1336
• CVE-2009-0787

References

• http://www.redhat.com/security/updates/classification/#important
• http://kbase.redhat.com/faq/docs/DOC-16748

Red Hat Enterprise Linux Server 5

SRPM
x86_64
kernel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: bdf72293c30938225525b395d4479290ba3f54a607a5bec0a846a2d9cb905248
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 1f8b25222ed8dcccd3245aeeb862db9a498194158cad60a376bc17dd9e2bf0a5
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 6ec3e4c64a172469d86fbf43fd66863faf80aadd017490328fc3f84f6e7e4e84
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: d83dc8f8e288a76176b9da1228c017f4e9751d7ddf22b109817deb22d7506022
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 5b2d5bc8297d0517cd0b199a4e6e96fb1ee7c595b52d3597bb8b34a46e7eb929
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 68bd26d999d83b9b685b5179f52cfcdc51b66dcbdf3efc99a20bfc632d88ae48
kernel-xen-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 7960f6fa724c8651a5011b32bb8e8058dfba16ed9fd76e9a2aad44ebb8bad7a5
ia64
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7
i386
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
kernel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: bdf72293c30938225525b395d4479290ba3f54a607a5bec0a846a2d9cb905248
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 1f8b25222ed8dcccd3245aeeb862db9a498194158cad60a376bc17dd9e2bf0a5
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 6ec3e4c64a172469d86fbf43fd66863faf80aadd017490328fc3f84f6e7e4e84
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: d83dc8f8e288a76176b9da1228c017f4e9751d7ddf22b109817deb22d7506022
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 5b2d5bc8297d0517cd0b199a4e6e96fb1ee7c595b52d3597bb8b34a46e7eb929
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 68bd26d999d83b9b685b5179f52cfcdc51b66dcbdf3efc99a20bfc632d88ae48
kernel-xen-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 7960f6fa724c8651a5011b32bb8e8058dfba16ed9fd76e9a2aad44ebb8bad7a5
i386
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7

Red Hat Enterprise Linux Desktop 5

SRPM
x86_64
kernel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: bdf72293c30938225525b395d4479290ba3f54a607a5bec0a846a2d9cb905248
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 1f8b25222ed8dcccd3245aeeb862db9a498194158cad60a376bc17dd9e2bf0a5
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 6ec3e4c64a172469d86fbf43fd66863faf80aadd017490328fc3f84f6e7e4e84
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: d83dc8f8e288a76176b9da1228c017f4e9751d7ddf22b109817deb22d7506022
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 5b2d5bc8297d0517cd0b199a4e6e96fb1ee7c595b52d3597bb8b34a46e7eb929
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 68bd26d999d83b9b685b5179f52cfcdc51b66dcbdf3efc99a20bfc632d88ae48
kernel-xen-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 7960f6fa724c8651a5011b32bb8e8058dfba16ed9fd76e9a2aad44ebb8bad7a5
i386
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
s390x
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7

Red Hat Enterprise Linux for Power, big endian 5

SRPM
ppc
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
kernel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: bdf72293c30938225525b395d4479290ba3f54a607a5bec0a846a2d9cb905248
kernel-debug-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 1f8b25222ed8dcccd3245aeeb862db9a498194158cad60a376bc17dd9e2bf0a5
kernel-debug-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 6ec3e4c64a172469d86fbf43fd66863faf80aadd017490328fc3f84f6e7e4e84
kernel-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: d83dc8f8e288a76176b9da1228c017f4e9751d7ddf22b109817deb22d7506022
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7
kernel-headers-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 5b2d5bc8297d0517cd0b199a4e6e96fb1ee7c595b52d3597bb8b34a46e7eb929
kernel-xen-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 68bd26d999d83b9b685b5179f52cfcdc51b66dcbdf3efc99a20bfc632d88ae48
kernel-xen-devel-2.6.18-128.1.10.el5.x86_64.rpm	SHA-256: 7960f6fa724c8651a5011b32bb8e8058dfba16ed9fd76e9a2aad44ebb8bad7a5
i386
kernel-doc-2.6.18-128.1.10.el5.noarch.rpm	SHA-256: 3b1f5af13ac458cda3779b160ff1fcf2df13e3216860a9752db466e66ffab2f7