Medium severity · published Aug 31, 2017
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
6.5
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Ffmpeg · Ffmpeg
3.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14056
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14056
www.debian.org
http://www.debian.org/security/2017/dsa-3996
www.securityfocus.com
http://www.securityfocus.com/bid/100628
Patch
https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de
lists.debian.org
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
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