CVE-2017-14171

Name: CVE-2017-14171
Creator: NVD / NIST
Published: 2017-09-07T06:29:00.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.77%

Last modified Jun 17, 2026

CVE-2017-14171 is a vulnerability of currently unknown severity. In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.

Metrics

EPSS Probability

1.77%

75.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-834

Affected Software

Vendor	Product	Versions
Ffmpeg	Ffmpeg	3.3.3

References

http://www.debian.org/security/2017/dsa-3996
http://www.securityfocus.com/bid/100706
https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
http://www.debian.org/security/2017/dsa-3996
http://www.securityfocus.com/bid/100706
https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html

Timeline

Published: Sep 7, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-14171?

How severe is CVE-2017-14171?

Severity scoring for CVE-2017-14171 is pending analysis. The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2017-14171?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-14171?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST