What’s Vulnerable › Vulnerabilities

CVE-2017-14055

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-08-31 · updated 2026-06-17
• Weakness: CWE-834

Description

In libavformat/mvdec.c in FFmpeg 3.3.3, a DoS in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted MV file, which claims a large "nb_frames" field in the header but does not contain sufficient backing data, is provided, the loop over the frames would consume huge CPU and memory resources, since there is no EOF check inside the loop.

Affected products

• FFmpeg: 3.3.3

References

• http://www.debian.org/security/2017/dsa-3996
• http://www.securityfocus.com/bid/100626
• https://github.com/FFmpeg/FFmpeg/commit/4f05e2e2dc1a89f38cd9f0960a6561083d714f1e
• https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
• http://www.debian.org/security/2017/dsa-3996
• http://www.securityfocus.com/bid/100626
• https://github.com/FFmpeg/FFmpeg/commit/4f05e2e2dc1a89f38cd9f0960a6561083d714f1e
• https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html

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