kernelimage-2.4.27 - several issues

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

• CVE-2004-2731
  infamous41md reported multiple integer overflows in the Sbus PROM
  driver that would allow for a DoS (Denial of Service) attack by a
  local user, and possibly the execution of arbitrary code.
• CVE-2006-4814
  Doug Chapman discovered a potential local DoS (deadlock) in the mincore
  function caused by improper lock handling.
• CVE-2006-5753
  Eric Sandeen provided a fix for a local memory corruption vulnerability
  resulting from a misinterpretation of return values when operating on
  inodes which have been marked bad.
• CVE-2006-5823
  LMH reported a potential local DoS which could be exploited by a malicious
  user with the privileges to mount and read a corrupted cramfs filesystem.
• CVE-2006-6053
  LMH reported a potential local DoS which could be exploited by a malicious
  user with the privileges to mount and read a corrupted ext3 filesystem.
• CVE-2006-6054
  LMH reported a potential local DoS which could be exploited by a malicious
  user with the privileges to mount and read a corrupted ext2 filesystem.
• CVE-2006-6106
  Marcel Holtman discovered multiple buffer overflows in the Bluetooth
  subsystem which can be used to trigger a remote DoS (crash) and potentially
  execute arbitrary code.
• CVE-2007-1353
  Ilja van Sprundel discovered that kernel memory could be leaked via the
  Bluetooth setsockopt call due to an uninitialized stack buffer. This
  could be used by local attackers to read the contents of sensitive kernel
  memory.
• CVE-2007-1592
  Masayuki Nakagawa discovered that flow labels were inadvertently
  being shared between listening sockets and child sockets. This defect
  can be exploited by local users to cause a DoS (Oops).
• CVE-2007-2172
  Thomas Graf reported a typo in the DECnet protocol handler that could
  be used by a local attacker to overrun an array via crafted packets,
  potentially resulting in a Denial of Service (system crash).
  A similar issue exists in the IPV4 protocol handler and will be fixed
  in a subsequent update.
• CVE-2007-2525
  Florian Zumbiehl discovered a memory leak in the PPPOE subsystem caused
  by releasing a socket before PPPIOCGCHAN is called upon it. This could
  be used by a local user to DoS a system by consuming all available memory.
• CVE-2007-3848
  Wojciech Purczynski discovered that pdeath_signal was not being reset
  properly under certain conditions which may allow local users to gain
  privileges by sending arbitrary signals to suid binaries.
• CVE-2007-4308
  Alan Cox reported an issue in the aacraid driver that allows unprivileged
  local users to make ioctl calls which should be restricted to admin
  privileges.
• CVE-2007-4311
  PaX team discovered an issue in the random driver where a defect in the
  reseeding code leads to a reduction in entropy.
• CVE-2007-5093
  Alex Smith discovered an issue with the pwc driver for certain webcam
  devices. If the device is removed while a userspace application has it
  open, the driver will wait for userspace to close the device, resulting
  in a blocked USB subsystem. This issue is of low security impact as
  it requires the attacker to either have physical access to the system
  or to convince a user with local access to remove the device on their
  behalf.
• CVE-2007-6063
  Venustech AD-LAB discovered a a buffer overflow in the isdn ioctl
  handling, exploitable by a local user.
• CVE-2007-6151
  ADLAB discovered a possible memory overrun in the ISDN subsystem that
  may permit a local user to overwrite kernel memory by issuing
  ioctls with unterminated data.
• CVE-2007-6206
  Blake Frantz discovered that when a core file owned by a non-root user
  exists, and a root-owned process dumps core over it, the core file
  retains its original ownership. This could be used by a local user to
  gain access to sensitive information.
• CVE-2007-6694
  Cyrill Gorcunov reported a NULL pointer dereference in code specific
  to the CHRP PowerPC platforms. Local users could exploit this issue
  to achieve a Denial of Service (DoS).
• CVE-2008-0007
  Nick Piggin of SuSE discovered a number of issues in subsystems which
  register a fault handler for memory mapped areas. This issue can be
  exploited by local users to achieve a Denial of Service (DoS) and possibly
  execute arbitrary code.

The following matrix lists additional packages that were rebuilt for
compatibility with or to take advantage of this update:

We recommend that you upgrade your kernel package immediately and reboot
the machine. If you have built a custom kernel from the kernel source
package, you will need to rebuild to take advantage of these fixes.