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USN-346-1: Linux kernel vulnerabilities

15 September 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)

James McKenzie discovered a Denial of Service vulnerability in the NFS
driver. When exporting an ext3 file system over NFS, a remote attacker
could exploit this to trigger a file system panic by sending a
specially crafted UDP packet. (CVE-2006-3468)

Wei Wang of McAfee Avert Labs discovered a buffer overflow in the
sctp_make_abort_user() function of iptables' SCTP module. On computers
which use this module, a local attacker could expoit this to execute
arbitrary code with root privileges. (CVE-2006-3745)

Olof Johansson discovered that the kernel did not disable the 'HID0'
bit on PowerPC 970 processors so that the ATTN instruction was
enabled. A local user could exploit this to crash the kernel. This
flaw only affects the powerpc architecture. (CVE-2006-4093)

The UDF file system does not handle extends larger than 1 GB, but did
not check for this restriction on truncating files. A local user could
exploit this to crash the kernel. (CVE-2006-4145)

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.

Learn more about Ubuntu Pro

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 - 2.6.15-26.47
  • linux-image-2.6.15-26-powerpc64-smp - 2.6.15-26.47
  • linux-image-2.6.15-26-hppa64 - 2.6.15-26.47
  • linux-image-2.6.15-26-386 - 2.6.15-26.47
  • linux-image-2.6.15-26-amd64-xeon - 2.6.15-26.47
  • linux-image-2.6.15-26-amd64-server - 2.6.15-26.47
  • linux-image-2.6.15-26-amd64-k8 - 2.6.15-26.47
  • linux-source-2.6.15 - 2.6.15-26.47
  • linux-image-2.6.15-26-hppa64-smp - 2.6.15-26.47
  • linux-image-2.6.15-26-k7 - 2.6.15-26.47
  • linux-image-2.6.15-26-server-bigiron - 2.6.15-26.47
  • linux-image-2.6.15-26-powerpc - 2.6.15-26.47
  • linux-image-2.6.15-26-mckinley-smp - 2.6.15-26.47
  • linux-image-2.6.15-26-amd64-generic - 2.6.15-26.47
  • linux-image-2.6.15-26-server - 2.6.15-26.47
  • linux-image-2.6.15-26-mckinley - 2.6.15-26.47
  • linux-image-2.6.15-26-itanium-smp - 2.6.15-26.47
  • linux-image-2.6.15-26-hppa32 - 2.6.15-26.47
  • linux-image-2.6.15-26-686 - 2.6.15-26.47
  • linux-image-2.6.15-26-itanium - 2.6.15-26.47
  • linux-image-2.6.15-26-powerpc-smp - 2.6.15-26.47
  • linux-image-2.6.15-26-sparc64 - 2.6.15-26.47
  • linux-image-2.6.15-26-sparc64-smp - 2.6.15-26.47
Ubuntu 5.10
  • linux-image-2.6.12-10-powerpc-smp - 2.6.12-10.39
  • linux-patch-ubuntu-2.6.12 - 2.6.12-10.39
  • linux-image-2.6.12-10-hppa32 - 2.6.12-10.39
  • linux-image-2.6.12-10-itanium-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-sparc64 - 2.6.12-10.39
  • linux-image-2.6.12-10-powerpc64-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-hppa64-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-amd64-generic - 2.6.12-10.39
  • linux-image-2.6.12-10-iseries-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-k7-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-amd64-xeon - 2.6.12-10.39
  • linux-image-2.6.12-10-itanium - 2.6.12-10.39
  • linux-image-2.6.12-10-hppa32-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-powerpc - 2.6.12-10.39
  • linux-image-2.6.12-10-mckinley - 2.6.12-10.39
  • linux-image-2.6.12-10-sparc64-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-hppa64 - 2.6.12-10.39
  • linux-image-2.6.12-10-amd64-k8-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-686 - 2.6.12-10.39
  • linux-image-2.6.12-10-686-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-k7 - 2.6.12-10.39
  • linux-image-2.6.12-10-mckinley-smp - 2.6.12-10.39
  • linux-image-2.6.12-10-386 - 2.6.12-10.39
  • linux-image-2.6.12-10-amd64-k8 - 2.6.12-10.39
Ubuntu 5.04
  • linux-patch-ubuntu-2.6.10 - 2.6.10-34.23
  • linux-image-2.6.10-6-686 - 2.6.10-34.23
  • linux-image-2.6.10-6-powerpc - 2.6.10-34.23
  • linux-image-2.6.10-6-itanium - 2.6.10-34.23
  • linux-image-2.6.10-6-power4-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-sparc64-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-hppa64-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-power3-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-hppa32-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-386 - 2.6.10-34.23
  • linux-image-2.6.10-6-hppa32 - 2.6.10-34.23
  • linux-image-2.6.10-6-sparc64 - 2.6.10-34.23
  • linux-image-2.6.10-6-hppa64 - 2.6.10-34.23
  • linux-image-2.6.10-6-amd64-xeon - 2.6.10-34.23
  • linux-image-2.6.10-6-itanium-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-powerpc-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-k7-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-power3 - 2.6.10-34.23
  • linux-image-2.6.10-6-k7 - 2.6.10-34.23
  • linux-image-2.6.10-6-power4 - 2.6.10-34.23
  • linux-image-2.6.10-6-mckinley - 2.6.10-34.23
  • linux-image-2.6.10-6-686-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-amd64-k8-smp - 2.6.10-34.23
  • linux-image-2.6.10-6-amd64-generic - 2.6.10-34.23
  • linux-image-2.6.10-6-amd64-k8 - 2.6.10-34.23
  • linux-image-2.6.10-6-mckinley-smp - 2.6.10-34.23

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

References

Related notices

  • USN-331-1: linux-image-2.6.15-26-sparc64, linux-image-2.6.15-26-amd64-k8, linux-image-2.6.15-26-mckinley-smp, linux-image-2.6.15-26-sparc64-smp, linux-image-2.6.15-26-k7, linux-image-2.6.15-26-686, linux-image-2.6.15-26-hppa32-smp, linux-image-2.6.15-26-amd64-generic, linux-image-2.6.15-26-server, linux-image-2.6.15-26-itanium-smp, linux-image-2.6.15-26-powerpc-smp, linux-image-2.6.15-26-386, linux-image-2.6.15-26-mckinley, linux-image-2.6.15-26-itanium, linux-image-2.6.15-26-amd64-xeon, linux-image-2.6.15-26-hppa64, linux-image-2.6.15-26-amd64-server, linux-image-2.6.15-26-powerpc, linux-image-2.6.15-26-powerpc64-smp, linux-image-2.6.15-26-hppa64-smp, linux-image-2.6.15-26-server-bigiron, linux-image-2.6.15-26-hppa32

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