Vulnerability Details : CVE-2017-1000460
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.
Products affected by CVE-2017-1000460
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
- cpe:2.3:a:ffmpeg:ffmpeg:3.4:*:*:*:*:*:*:*
- cpe:2.3:a:libav:libav:13_dev0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-1000460
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-1000460
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2017-1000460
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-1000460
-
https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html
[FFmpeg-cvslog] h264dec: handle zero-sized NAL units in get_last_needed_nal()Issue Tracking;Patch
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html
[SECURITY] [DLA 1740-1] libav security update
-
https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/8e313ca08800178efce00045e07dc494d437b70c
8e313ca08800178efce00045e07dc494d437b70c - chromium/third_party/ffmpeg - Git at GoogleIssue Tracking;Patch
-
https://bugzilla.libav.org/show_bug.cgi?id=952
Bug 952 – NULL dereference in libavcodec/h264dec.c:499/500Exploit;Issue Tracking;Third Party Advisory
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