Vigil@nce - Linux kernel: infinite loop of pivot_root
October 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate an infinite loop in the pivot_root()
function of the Linux kernel, in order to trigger a denial of
service.
Impacted products: Linux
Severity: 1/4
Creation date: 09/10/2014
DESCRIPTION OF THE VULNERABILITY
The pivot_root() system call changes the file system root for the
current process.
However, if it is called with pivot_root(".", "."), when located
outside the chroot, a loop occurs.
An attacker can therefore generate an infinite loop in the
pivot_root() function of the Linux kernel, in order to trigger a
denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Linux-kernel-infinite-loop-of-pivot-root-15455