---
title: "CVE-2014-9421\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-2014-9421?format=md
keywords: index, follow
---

# CVE-2014-9421

Publication date 3 February 2015

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The auth\_gssapi\_unwrap\_data function in lib/rpc/auth\_gssapi\_misc.c in MIT
Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x
before 1.13.1 does not properly handle partial XDR deserialization, which
allows remote authenticated users to cause a denial of service
(use-after-free and double free, and daemon crash) or possibly execute
arbitrary code via malformed XDR data, as demonstrated by data sent to
kadmind.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| krb5 | 14.10 utopic | Fixed 1.12.1+dfsg-10ubuntu0.1 |
| 14.04 LTS trusty | Fixed 1.12+dfsg-2ubuntu5.1 |
| 12.04 LTS precise | Fixed 1.10+dfsg~beta1-2ubuntu0.6 |
| 10.04 LTS lucid | Fixed 1.8.1+dfsg-2ubuntu0.14 |

---

* [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-2014-9421?format=md#patch-details)

### 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 |
| --- | --- |
| krb5 | * Upstream:   [a197e92](https://github.com/krb5/krb5/commit/a197e92349a4aa2141b5dff12e9dd44c2a2166e3) * Upstream:   <http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2015-001.txt> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9421)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-9421)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-9421)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-9421)

### Related Ubuntu Security Notices (USN)

+ [USN-2498-1](https://usn.ubuntu.com/USN-2498-1)
+ Kerberos vulnerabilities
+ 10 February 2015

### Other references

* <http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2015-001.txt>
* <https://www.cve.org/CVERecord?id=CVE-2014-9421>