linux-2.6.24 - several vulnerabilities

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a denial of service or privilege escalation. The Common
Vulnerabilities and Exposures project identifies the following
problems:

• CVE-2008-4307
  Bryn M. Reeves reported a denial of service in the NFS filesystem.
  Local users can trigger a kernel BUG() due to a race condition in
  the do_setlk function.
• CVE-2008-5079
  Hugo Dias reported a DoS condition in the ATM subsystem that can
  be triggered by a local user by calling the svc_listen function
  twice on the same socket and reading /proc/net/atm/*vc.
• CVE-2008-5395
  Helge Deller discovered a denial of service condition that allows
  local users on PA-RISC systems to crash a system by attempting to
  unwind a stack containing userspace addresses.
• CVE-2008-5700
  Alan Cox discovered a lack of minimum timeouts on SG_IO requests,
  which allows local users of systems using ATA to cause a denial of
  service by forcing drives into PIO mode.
• CVE-2008-5701
  Vlad Malov reported an issue on 64-bit MIPS systems where a local
  user could cause a system crash by crafing a malicious binary
  which makes o32 syscalls with a number less than 4000.
• CVE-2008-5702
  Zvonimir Rakamaric reported an off-by-one error in the ib700wdt
  watchdog driver which allows local users to cause a buffer
  underflow by making a specially crafted WDIOC_SETTIMEOUT ioctl
  call.
• CVE-2009-0028
  Chris Evans discovered a situation in which a child process can
  send an arbitrary signal to its parent.
• CVE-2009-0029
  Christian Borntraeger discovered an issue effecting the alpha,
  mips, powerpc, s390 and sparc64 architectures that allows local
  users to cause a denial of service or potentially gain elevated
  privileges.
• CVE-2009-0031
  Vegard Nossum discovered a memory leak in the keyctl subsystem
  that allows local users to cause a denial of service by consuming
  all of kernel memory.
• CVE-2009-0065
  Wei Yongjun discovered a memory overflow in the SCTP
  implementation that can be triggered by remote users, permitting
  remote code execution.
• CVE-2009-0269
  Duane Griffin provided a fix for an issue in the eCryptfs
  subsystem which allows local users to cause a denial of service
  (fault or memory corruption).
• CVE-2009-0322
  Pavel Roskin provided a fix for an issue in the dell_rbu driver
  that allows a local user to cause a denial of service (oops) by
  reading 0 bytes from a sysfs entry.
• CVE-2009-0675
  Roel Kluin discovered inverted logic in the skfddi driver that
  permits local, unprivileged users to reset the driver statistics.
• CVE-2009-0676
  Clement LECIGNE discovered a bug in the sock_getsockopt function
  that may result in leaking sensitive kernel memory.
• CVE-2009-0745
  Peter Kerwien discovered an issue in the ext4 filesystem that
  allows local users to cause a denial of service (kernel oops)
  during a resize operation.
• CVE-2009-0834
  Roland McGrath discovered an issue on amd64 kernels that allows
  local users to circumvent system call audit configurations which
  filter based on the syscall numbers or argument details.
• CVE-2009-0859
  Jiri Olsa discovered that a local user can cause a denial of
  service (system hang) using a SHM_INFO shmctl call on kernels
  compiled with CONFIG_SHMEM disabled. This issue does not affect
  prebuilt Debian kernels.
• CVE-2009-1046
  Mikulas Patocka reported an issue in the console subsystem that
  allows a local user to cause memory corruption by selecting a
  small number of 3-byte UTF-8 characters.
• CVE-2009-1192
  Shaohua Li reported an issue in the AGP subsystem that may allow
  local users to read sensitive kernel memory due to a leak of
  uninitialized memory.
• CVE-2009-1242
  Benjamin Gilbert reported a local denial of service vulnerability
  in the KVM VMX implementation that allows local users to trigger
  an oops.
• CVE-2009-1265
  Thomas Pollet reported an overflow in the af_rose implementation
  that allows remote attackers to retrieve uninitialized kernel
  memory that may contain sensitive data.
• CVE-2009-1337
  Oleg Nesterov discovered an issue in the exit_notify function that
  allows local users to send an arbitrary signal to a process by
  running a program that modifies the exit_signal field and then
  uses an exec system call to launch a setuid application.
• CVE-2009-1338
  Daniel Hokka Zakrisson discovered that a kill(-1) is permitted to
  reach processes outside of the current process namespace.
• CVE-2009-1439
  Pavan Naregundi reported an issue in the CIFS filesystem code that
  allows remote users to overwrite memory via a long
  nativeFileSystem field in a Tree Connect response during mount.

For the oldstable distribution (etch), these problems have been fixed in
version 2.6.24-6~etchnhalf.8etch1.

We recommend that you upgrade your linux-2.6.24 packages.

Note: Debian ‘etch’ includes linux kernel packages based upon both the
2.6.18 and 2.6.24 linux releases. All known security issues are
carefully tracked against both packages and both packages will receive
security updates until security support for Debian ‘etch’
concludes. However, given the high frequency at which low-severity
security issues are discovered in the kernel and the resource
requirements of doing an update, lower severity 2.6.18 and 2.6.24
updates will typically release in a staggered or “leap-frog” fashion.