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USN-331-1: Linux kernel vulnerabilities

3 August 2006

Linux kernel vulnerabilities

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Releases

Details

A Denial of service vulnerability was reported in iptables' SCTP
conntrack module. On computers which use this iptables module, a
remote attacker could expoit this to trigger a kernel crash.
(CVE-2006-2934)

A buffer overflow has been discovered in the dvd_read_bca() function.
By inserting a specially crafted DVD, USB stick, or similar
automatically mounted removable device, a local user could crash the
machine or potentially even execute arbitrary code with full root
privileges. (CVE-2006-2935)

The ftdi_sio driver for serial USB ports did not limit the amount of
pending data to be written. A local user could exploit this to drain
all available kernel memory and thus render the system unusable.
(CVE-2006-2936)

Additionally, this update fixes a range of bugs.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 6.06
  • linux-image-2.6.15-26-hppa32-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-powerpc64-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-hppa64 - 2.6.15-26.46
  • linux-image-2.6.15-26-386 - 2.6.15-26.46
  • linux-image-2.6.15-26-amd64-xeon - 2.6.15-26.46
  • linux-image-2.6.15-26-amd64-server - 2.6.15-26.46
  • linux-image-2.6.15-26-amd64-k8 - 2.6.15-26.46
  • linux-image-2.6.15-26-hppa64-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-k7 - 2.6.15-26.46
  • linux-image-2.6.15-26-server-bigiron - 2.6.15-26.46
  • linux-image-2.6.15-26-powerpc - 2.6.15-26.46
  • linux-image-2.6.15-26-mckinley-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-amd64-generic - 2.6.15-26.46
  • linux-image-2.6.15-26-server - 2.6.15-26.46
  • linux-image-2.6.15-26-mckinley - 2.6.15-26.46
  • linux-image-2.6.15-26-itanium-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-hppa32 - 2.6.15-26.46
  • linux-image-2.6.15-26-686 - 2.6.15-26.46
  • linux-image-2.6.15-26-itanium - 2.6.15-26.46
  • linux-image-2.6.15-26-powerpc-smp - 2.6.15-26.46
  • linux-image-2.6.15-26-sparc64 - 2.6.15-26.46
  • linux-image-2.6.15-26-sparc64-smp - 2.6.15-26.46

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.

Please note that Ubuntu 5.04 and 5.10 are also affected by these
flaws. An update is in preparation and will be released shortly.

References

Related notices

  • USN-346-1: linux-image-2.6.15-26-sparc64, linux-image-2.6.10-6-686, linux-source-2.6.15, linux-image-2.6.10-6-hppa32-smp, linux-image-2.6.12-10-powerpc-smp, linux-image-2.6.15-26-amd64-k8, linux-image-2.6.12-10-k7-smp, linux-image-2.6.12-10-hppa32-smp, linux-image-2.6.10-6-power4, linux-patch-ubuntu-2.6.10, linux-image-2.6.10-6-power3-smp, linux-image-2.6.10-6-mckinley, linux-image-2.6.12-10-amd64-k8, linux-image-2.6.15-26-mckinley-smp, linux-image-2.6.10-6-amd64-k8-smp, linux-image-2.6.15-26-sparc64-smp, linux-image-2.6.15-26-k7, linux-image-2.6.12-10-sparc64, linux-image-2.6.12-10-itanium-smp, linux-image-2.6.15-26-686, linux-image-2.6.12-10-mckinley, linux-patch-ubuntu-2.6.12, linux-image-2.6.10-6-powerpc, linux-image-2.6.15-26-hppa32-smp, linux-image-2.6.15-26-amd64-generic, linux-image-2.6.12-10-686-smp, linux-image-2.6.12-10-amd64-xeon, linux-image-2.6.12-10-itanium, linux-image-2.6.10-6-amd64-k8, linux-image-2.6.15-26-server, linux-image-2.6.15-26-itanium-smp, linux-image-2.6.12-10-686, linux-image-2.6.12-10-powerpc, linux-image-2.6.10-6-k7-smp, linux-image-2.6.12-10-amd64-k8-smp, linux-image-2.6.15-26-powerpc-smp, linux-image-2.6.15-26-386, linux-image-2.6.10-6-itanium-smp, linux-image-2.6.12-10-hppa32, linux-image-2.6.12-10-hppa64, linux-image-2.6.12-10-hppa64-smp, linux-image-2.6.15-26-itanium, linux-image-2.6.15-26-mckinley, linux-image-2.6.10-6-mckinley-smp, linux-image-2.6.15-26-amd64-xeon, linux-image-2.6.12-10-k7, linux-image-2.6.15-26-hppa64, linux-image-2.6.10-6-386, linux-image-2.6.10-6-hppa64, linux-image-2.6.10-6-power3, linux-image-2.6.12-10-mckinley-smp, linux-image-2.6.10-6-power4-smp, linux-image-2.6.10-6-sparc64-smp, linux-image-2.6.15-26-amd64-server, linux-image-2.6.12-10-sparc64-smp, linux-image-2.6.15-26-powerpc, linux-image-2.6.15-26-powerpc64-smp, linux-image-2.6.10-6-amd64-generic, linux-image-2.6.10-6-686-smp, linux-image-2.6.10-6-hppa64-smp, linux-image-2.6.10-6-powerpc-smp, linux-image-2.6.10-6-sparc64, linux-image-2.6.10-6-hppa32, linux-image-2.6.15-26-hppa64-smp, linux-image-2.6.12-10-powerpc64-smp, linux-image-2.6.12-10-iseries-smp, linux-image-2.6.10-6-k7, linux-image-2.6.12-10-amd64-generic, linux-image-2.6.10-6-amd64-xeon, linux-image-2.6.12-10-386, linux-image-2.6.15-26-server-bigiron, linux-image-2.6.10-6-itanium, linux-image-2.6.15-26-hppa32

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