---
title: "CVE-2007-1216\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-2007-1216?format=md
keywords: index, follow
---

# CVE-2007-1216

Publication date 6 April 2007

Last updated 17 July 2025

---

Ubuntu priority

**Medium**

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

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## Description

Double free vulnerability in the GSS-API library
(lib/gssapi/krb5/k5unseal.c), as used by the Kerberos administration daemon
(kadmind) in MIT krb5 before 1.6.1, when used with the authentication
method provided by the RPCSEC\_GSS RPC library, allows remote authenticated
users to execute arbitrary code and modify the Kerberos key database via a
message with an "an invalid direction encoding".

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| krb5 | 7.04 feisty | Fixed 1.4.4-5ubuntu3.3 |
| 6.10 edgy | Fixed 1.4.3-9ubuntu1.5 |
| 6.06 LTS dapper | Fixed 1.4.3-5ubuntu0.6 |

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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)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1216)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2007-1216)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2007-1216)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2007-1216)

### Related Ubuntu Security Notices (USN)

+ [USN-449-1](https://usn.ubuntu.com/USN-449-1)
+ krb5 vulnerabilities
+ 4 April 2007

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2007-1216>