Vigil@nce - PHP: memory corruption via bzread
September 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate a memory corruption via bzread() of PHP,
in order to trigger a denial of service, and possibly to run code.
– Impacted products: Debian, openSUSE, PHP, SUSE Linux Enterprise
Desktop, SLES, Ubuntu.
– Severity: 2/4.
– Creation date: 21/07/2016.
DESCRIPTION OF THE VULNERABILITY
The PHP product offers a bzip2 module.
However, the bzread() function can write past the end of data.
An attacker can therefore generate a memory corruption via
bzread() of PHP, in order to trigger a denial of service, and
possibly to run code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/PHP-memory-corruption-via-bzread-20186