FFmpeg Multiple Out of Bounds Memory Corruption Vulnerabilities

Bugtraq ID:	66061
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Mar 03 2014 12:00AM
Updated:	Mar 03 2014 12:00AM
Credit:	The vendor, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Vulnerable:	FFmpeg FFmpeg 2.1.1 FFmpeg FFmpeg 2.0.1 FFmpeg FFmpeg 2.1 FFmpeg FFmpeg 2.0
Not Vulnerable:

FFmpeg Multiple Out of Bounds Memory Corruption Vulnerabilities

FFmpeg is prone to multiple memory-corruption vulnerabilities.

An attacker can exploit these issues to execute arbitrary code in the context of the user running the affected application. Failed exploit attempts will likely result in denial-of-service conditions.

FFmpeg Multiple Out of Bounds Memory Corruption Vulnerabilities

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

FFmpeg Multiple Out of Bounds Memory Corruption Vulnerabilities

Solution:
Updates are available. Please see the references or vendor advisory for more information.

FFmpeg Multiple Out of Bounds Memory Corruption Vulnerabilities

References:

• avcodec/h264: use subsample factors of the used pixel format (FFmpeg)
  
• avcodec/hevcpred_template: also initialize top[-1] for constrained intra predict (FFmpeg)
  
• avcodec/jpeg2000dec: fix error detection in pix_fmt_match() (FFmpeg)
  
• avcodec/mpeg4videodec: Check for bitstream overread in decode_vol_header() (FFmpeg)
  
• avcodec/vmnc: Check that rectangles are within the picture (FFmpeg)
  
• avformat/oggparsevorbis: check packet size before reading new_len from it (FFmpeg)
  
• dnxhdenc: fix mb_rc size (FFmpeg)
  
• FFmpeg Homepage (FFmpeg)