CVE-2017-14056 - In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File)

CVE-2017-14056

Summary

In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.

References

Vulnerable Configurations

cpe:2.3:a:ffmpeg:ffmpeg:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:3.3.3:*:*:*:*:*:*:*

CVSS

Base:	7.1 (as of 03-10-2019 - 00:03)
Impact:
Exploitability:

CWE

CWE-834

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	MEDIUM	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	COMPLETE

cvss-vector via4

AV:N/AC:M/Au:N/C:N/I:N/A:C

refmap via4

bid	100628
confirm	https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de
debian	DSA-3996
mlist	[debian-lts-announce] 20190107 [SECURITY] [DLA 1630-1] libav security update

Last major update

03-10-2019 - 00:03

Published

31-08-2017 - 15:29

Last modified

03-10-2019 - 00:03