---
title: "CVE-2011-2511\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-2511?format=md
keywords: index, follow
---

# CVE-2011-2511

Publication date 12 July 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

Integer overflow in libvirt before 0.9.3 allows remote authenticated users
to cause a denial of service (libvirtd crash) and possibly execute
arbitrary code via a crafted VirDomainGetVcpus RPC call that triggers
memory corruption.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-2511?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libvirt | 11.04 natty | Fixed 0.8.8-1ubuntu6.5 |
| 10.10 maverick | Fixed 0.8.3-1ubuntu19.1 |
| 10.04 LTS lucid | Fixed 0.7.5-5ubuntu27.16 |
| 8.04 LTS hardy | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2011-2511?format=md#patch-details)

## Notes

---

### [jdstrand](https://launchpad.net/~jdstrand)

DoS is confirmed by a remote authenticated user
89d994ad6b0e8ebe9a2cd4e0e37119ff4c917550 (gnulib) may not actually
be required to fix in stable releases.
fixed in 0.8.3-5+squeeze2

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| libvirt | * Upstream:   <https://www.redhat.com/archives/libvir-list/2011-June/msg01278.html> * Vendor:   <https://rhn.redhat.com/errata/RHSA-2011-1019.html> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2511)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-2511)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-2511)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-2511)

### Related Ubuntu Security Notices (USN)

+ [USN-1180-1](https://usn.ubuntu.com/USN-1180-1)
+ libvirt vulnerability
+ 28 July 2011

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-2511>