linux-2.6 - several vulnerabilities

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

• CVE-2009-3939
  Joseph Malicki reported that the dbg_lvl sysfs attribute for the
  megaraid_sas device driver had world-writable permissions,
  permitting local users to modify logging settings.
• CVE-2009-4027
  Lennert Buytenhek reported a race in the mac80211 subsystem that
  may allow remote users to cause a denial of service (system crash)
  on a system connected to the same wireless network.
• CVE-2009-4536 CVE-2009-4538
  Fabian Yamaguchi reported issues in the e1000 and e1000e drivers
  for Intel gigabit network adapters which allow remote users to
  bypass packet filters using specially crafted ethernet frames.
• CVE-2010-0003
  Andi Kleen reported a defect which allows local users to gain read
  access to memory reachable by the kernel when the
  print-fatal-signals option is enabled. This option is disabled by
  default.
• CVE-2010-0007
  Florian Westphal reported a lack of capability checking in the
  ebtables netfilter subsystem. If the ebtables module is loaded,
  local users can add and modify ebtables rules.
• CVE-2010-0291
  Al Viro reported several issues with the mmap/mremap system calls
  that allow local users to cause a denial of service (system panic)
  or obtain elevated privileges.
• CVE-2010-0298 & CVE-2010-0306
  Gleb Natapov discovered issues in the KVM subsystem where missing
  permission checks (CPL/IOPL) permit a user in a guest system to
  denial of service a guest (system crash) or gain escalated
  privileges with the guest.
• CVE-2010-0307
  Mathias Krause reported an issue with the load_elf_binary code on
  the amd64 flavor kernels that allows local users to cause a denial
  of service (system crash).
• CVE-2010-0309
  Marcelo Tosatti fixed an issue in the PIT emulation code in the
  KVM subsystem that allows privileged users in a guest domain to
  cause a denial of service (crash) of the host system.
• CVE-2010-0410
  Sebastian Krahmer discovered an issue in the netlink connector
  subsystem that permits local users to allocate large amounts of
  system memory resulting in a denial of service (out of memory).
• CVE-2010-0415
  Ramon de Carvalho Valle discovered an issue in the sys_move_pages
  interface, limited to amd64, ia64 and powerpc64 flavors in Debian.
  Local users can exploit this issue to cause a denial of service
  (system crash) or gain access to sensitive kernel memory.

For the stable distribution (lenny), this problem has been fixed in
version 2.6.26-21lenny3.

For the oldstable distribution (etch), these problems, where
applicable, will be fixed in updates to linux-2.6 and linux-2.6.24.

We recommend that you upgrade your linux-2.6 and user-mode-linux
packages.

Note: Debian carefully tracks all known security issues across every
linux kernel package in all releases under active security support.
However, given the high frequency at which low-severity security
issues are discovered in the kernel and the resource requirements of
doing an update, updates for lower priority issues will normally not
be released for all kernels at the same time. Rather, they will be
released in a staggered or “leap-frog” fashion.

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