Actu
Vigil@nce - Linux kernel: privilege escalation via perf_paranoid_kernel
December 2013 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can trace the execution of the Linux kernel, in
order to retrieve information to escalate his privileges.
Impacted products: Linux
Severity: 2/4
Creation date: 02/12/2013
DESCRIPTION OF THE VULNERABILITY
The Linux kernel can trace operations, in order to measure
performances.
However, the perf_paranoid_kernel() function returns an incorrect
value, which allows users to trace functions.
A local attacker can therefore trace the execution of the Linux
kernel, in order to retrieve information to escalate his
privileges.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Linux-kernel-privilege-escalation-via-perf-paranoid-kernel-13847
