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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) 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…

Severity
Medium 6.5
Published
31 Aug 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.8% in the next 30 daysHigher than 79% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-834
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Sources
NVD

Description

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.

From NVD.

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 3.3.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-14056
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-14056