Medium severity · published Sep 7, 2017
CVE-2017-14170
In libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, a DoS in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption
6.5
CVSS
1.8%
EPSS
No
On KEV
Description
In libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, a DoS in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted MXF file, which claims a large "nb_index_entries" field in the header but does not contain sufficient backing data, is provided, the loop would consume huge CPU resources, since there is no EOF check inside the loop. Moreover, this big loop can be invoked multiple times if there is more than one applicable data segment in the crafted MXF file.
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 78% 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-2017-14170
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14170
www.debian.org
http://www.debian.org/security/2017/dsa-3996
www.securityfocus.com
http://www.securityfocus.com/bid/100700
Issue Tracking
https://github.com/FFmpeg/FFmpeg/commit/900f39692ca0337a98a7cf047e4e2611071810c2
github.com
https://github.com/FFmpeg/FFmpeg/commit/f173cdfe669556aa92857adafe60cbe5f2aa1210
lists.debian.org
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
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