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USN-143-1: Linux amd64 kernel vulnerabilities

27 June 2005

Linux amd64 kernel vulnerabilities

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Releases

Details

A Denial of Service vulnerability has been discovered in the ptrace()
call on the amd64 platform. By calling ptrace() with specially crafted
("non-canonical") addresses, a local attacker could cause the kernel
to crash. This only affects the amd64 platform. (CAN-2005-1762)

ZouNanHai discovered that a local user could hang the kernel by
invoking syscall() with specially crafted arguments. This only affects
the amd64 platform when running in the 32 bit compatibility mode.
(CAN-2005-1765)

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 5.04
  • linux-patch-ubuntu-2.6.10 -
  • linux-image-2.6.10-5-amd64-k8-smp -
  • linux-patch-debian-2.6.8.1 -
  • linux-image-2.6.8.1-5-power4-smp -
  • linux-image-2.6.10-5-amd64-xeon -
  • linux-image-2.6.8.1-5-power4 -
  • linux-image-2.6.10-5-amd64-generic -
  • linux-image-2.6.10-5-amd64-k8 -
  • linux-image-2.6.8.1-5-powerpc -
  • linux-image-2.6.8.1-5-powerpc-smp -
Ubuntu 4.10
  • linux-patch-ubuntu-2.6.10 -
  • linux-image-2.6.10-5-amd64-k8-smp -
  • linux-patch-debian-2.6.8.1 -
  • linux-image-2.6.8.1-5-power4-smp -
  • linux-image-2.6.10-5-amd64-xeon -
  • linux-image-2.6.8.1-5-power4 -
  • linux-image-2.6.10-5-amd64-generic -
  • linux-image-2.6.10-5-amd64-k8 -
  • linux-image-2.6.8.1-5-powerpc -
  • linux-image-2.6.8.1-5-powerpc-smp -

In general, a standard system update will make all the necessary changes.