OSVDB ID: 70463

Title: FFmpeg Vorbis Decoder vorbis_dec.c Channel Floor Buffer Memory Corruption

Info

Disclosure

Jan 12, 2011

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Jan 12, 2011

Description

FFmpeg contains a flaw in the Vorbis decoder within the 'vorbis_parse_setup_hdr_floors' function [vorbis_dec.c]. The issue is triggered as user-supplied input is not properly sanitized when processing the channel floor value. With a specially crafted WebM file, a context-dependent attacker can corrupt memory to cause a denial of service or potentially execute arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified, Coordinated Disclosure

Solution

Upgrade to version 0.6.90-rc0 (FFmpeg), 8.0.552.237 (Chrome), 8.0.552.344 (Chrome OS) or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Google, Inc.

Chrome

8.0.552.224

Chrome OS

8.0.552.343

References

Credit

Unknown or Incomplete



Direct URL: http://osvdb.org/70463