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Vigil@nce - Linux kernel: denial of service via arch_dup_task_struct
April 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can use a sequence of PowerPC instructions on the
Linux kernel, in order to trigger a denial of service.
Impacted products: Linux
Severity: 1/4
Creation date: 31/03/2014
DESCRIPTION OF THE VULNERABILITY
The Linux kernel can be installed on a PowerPC processor.
However, when the kernel creates a new thread, the
arch_dup_task_struct() function does not update the state.
A local attacker can therefore use a sequence of PowerPC
instructions on the Linux kernel, in order to trigger a denial of
service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-arch-dup-task-struct-14500
