USN-187-1: Linux kernel vulnerabilities

25 September 2005

Linux kernel vulnerabilities

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Releases

Details

A Denial of Service vulnerability was detected in the stack segment
fault handler. A local attacker could exploit this by causing stack
fault exceptions under special circumstances (scheduling), which lead
to a kernel crash. (CAN-2005-1767)

Vasiliy Averin discovered a Denial of Service vulnerability in the
"tiocgdev" ioctl call and in the "routing_ioctl" function. By calling
fget() and fput() in special ways, a local attacker could exploit this
to destroy file descriptor structures and crash the kernel.
(CAN-2005-3044)

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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-2.6.8.1-5-powerpc-smp -
linux-image-2.6.8.1-5-power4-smp -
linux-image-2.6.10-5-386 -
linux-image-2.6.10-5-itanium-smp -
linux-image-2.6.10-5-power4 -
linux-image-2.6.10-5-amd64-k8 -
linux-image-2.6.10-5-amd64-xeon -
linux-image-2.6.10-5-mckinley-smp -
linux-image-2.6.10-5-power4-smp -
linux-image-2.6.8.1-5-amd64-generic -
linux-image-2.6.10-5-amd64-k8-smp -
linux-image-2.6.8.1-5-k7-smp -
linux-image-2.6.8.1-5-power3-smp -
linux-image-2.6.8.1-5-amd64-xeon -
linux-image-2.6.10-5-powerpc-smp -
linux-image-2.6.8.1-5-power3 -
linux-image-2.6.8.1-5-power4 -
linux-image-2.6.8.1-5-powerpc -
linux-image-2.6.10-5-mckinley -
linux-image-2.6.10-5-itanium -
linux-image-2.6.10-5-power3-smp -
linux-image-2.6.10-5-k7 -
linux-image-2.6.10-5-power3 -
linux-image-2.6.8.1-5-amd64-k8-smp -
linux-image-2.6.8.1-5-686 -
linux-image-2.6.8.1-5-686-smp -
linux-patch-debian-2.6.8.1 -
linux-image-2.6.10-5-powerpc -
linux-image-2.6.8.1-5-k7 -
linux-image-2.6.10-5-k7-smp -
linux-image-2.6.10-5-amd64-generic -
linux-image-2.6.10-5-686-smp -
linux-image-2.6.8.1-5-386 -
linux-image-2.6.10-5-686 -
linux-image-2.6.8.1-5-amd64-k8 -

Ubuntu 4.10

linux-patch-ubuntu-2.6.10 -
linux-image-2.6.8.1-5-powerpc-smp -
linux-image-2.6.8.1-5-power4-smp -
linux-image-2.6.10-5-386 -
linux-image-2.6.10-5-itanium-smp -
linux-image-2.6.10-5-power4 -
linux-image-2.6.10-5-amd64-k8 -
linux-image-2.6.10-5-amd64-xeon -
linux-image-2.6.10-5-mckinley-smp -
linux-image-2.6.10-5-power4-smp -
linux-image-2.6.8.1-5-amd64-generic -
linux-image-2.6.10-5-amd64-k8-smp -
linux-image-2.6.8.1-5-k7-smp -
linux-image-2.6.8.1-5-power3-smp -
linux-image-2.6.8.1-5-amd64-xeon -
linux-image-2.6.10-5-powerpc-smp -
linux-image-2.6.8.1-5-power3 -
linux-image-2.6.8.1-5-power4 -
linux-image-2.6.8.1-5-powerpc -
linux-image-2.6.10-5-mckinley -
linux-image-2.6.10-5-itanium -
linux-image-2.6.10-5-power3-smp -
linux-image-2.6.10-5-k7 -
linux-image-2.6.10-5-power3 -
linux-image-2.6.8.1-5-amd64-k8-smp -
linux-image-2.6.8.1-5-686 -
linux-image-2.6.8.1-5-686-smp -
linux-patch-debian-2.6.8.1 -
linux-image-2.6.10-5-powerpc -
linux-image-2.6.8.1-5-k7 -
linux-image-2.6.10-5-k7-smp -
linux-image-2.6.10-5-amd64-generic -
linux-image-2.6.10-5-686-smp -
linux-image-2.6.8.1-5-386 -
linux-image-2.6.10-5-686 -
linux-image-2.6.8.1-5-amd64-k8 -

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

References

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USN-187-1: Linux kernel vulnerabilities

Reduce your security exposure

Releases

Details

Reduce your security exposure

Update instructions

Ubuntu 5.04

Ubuntu 4.10

References

Join the discussion

Need help with your security needs?

Further reading