Vulnerability Details : CVE-2017-7866
FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.
Vulnerability category: OverflowMemory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2017-7866
Probability of exploitation activity in the next 30 days: 0.49%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 73 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-7866
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-7866
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7866
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https://github.com/FFmpeg/FFmpeg/commit/e371f031b942d73e02c090170975561fabd5c264
avcodec/pngdec: Fix off by 1 size in decode_zbuf() · FFmpeg/FFmpeg@e371f03 · GitHubPatch;Third Party Advisory
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=444
444 - ffmpeg: Stack-buffer-overflow in decode_zbuf - oss-fuzz - MonorailThird Party Advisory;VDB Entry
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http://www.securityfocus.com/bid/97664
FFmpeg CVE-2017-7866 Stack Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
Products affected by CVE-2017-7866
- cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*