Vulnerability CVE-2017-1000460
Published: 2018-01-03

Description:
In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Libav -> Libav 
Google -> Chrome 
Ffmpeg -> Ffmpeg 

 References:
https://bugzilla.libav.org/show_bug.cgi?id=952
https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/8e313ca08800178efce00045e07dc494d437b70c
https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html
https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html
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