Actu
Vigil@nce - Linux kernel: integer overflow of lzo1x_decompress_safe
July 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate an integer overflow in the
lzo1x_decompress_safe() function of the Linux kernel, in order to
trigger a denial of service, and possibly to execute code.
Impacted products: Fedora, Linux
Severity: 2/4
Creation date: 27/06/2014
DESCRIPTION OF THE VULNERABILITY
The Linux kernel implements the LZO compression algorithm.
However, if data contains a null byte, an integer can overflow in
the lzo1x_decompress_safe() function of the
lib/lzo/lzo1x_decompress_safe.c file.
An attacker can therefore generate an integer overflow in the
lzo1x_decompress_safe() function of the Linux kernel, in order to
trigger a denial of service, and possibly to execute code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Linux-kernel-integer-overflow-of-lzo1x-decompress-safe-14943
