---
title: "CVE-2011-0283\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-2011-0283?format=md
keywords: index, follow
---

# CVE-2011-0283

Publication date 10 February 2011

Last updated 24 July 2024

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Ubuntu priority

**Medium**

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

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## Description

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 allows
remote attackers to cause a denial of service (NULL pointer dereference and
daemon crash) via a malformed request packet that does not trigger a
response packet.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-0283?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| krb5 | 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 9.10 karmic | Not affected |
| 8.04 LTS hardy | Not affected |
| 6.06 LTS dapper | Not affected |

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* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

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

1.9 only (confirmed by sbeattie)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0283)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-0283)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-0283)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-0283)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-0283>