Vigil@nce - Google Android OS: integer overflow of mediaserver via MKV
September 2015 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can invite the victim to see a web site containing a
malicious MKV video, in order to trigger a denial of service of
mediaserver on Google Android OS, .
Impacted products: Android OS.
Severity: 2/4.
Creation date: 30/07/2015.
DESCRIPTION OF THE VULNERABILITY
The Google Android OS system uses the mediaserver service to
display videos in MKV (Matroska) format.
However, if an integer is too large, the frameworks/av/media/libstagefright/matroska/MatroskaExtractor.cpp
file reads or writes to an invalid address.
An attacker can therefore invite the victim to see a web site
containing a malicious MKV video, in order to trigger a denial of
service of mediaserver on Google Android OS, .
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Google-Android-OS-integer-overflow-of-mediaserver-via-MKV-17542