---
title: "CVE-2009-4484\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-2009-4484?format=md
keywords: index, follow
---

# CVE-2009-4484

Publication date 30 December 2009

Last updated 26 May 2025

---

Ubuntu priority

**Medium**

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

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## Description

Multiple stack-based buffer overflows in the CertDecoder::GetName function
in src/asn.cpp in TaoCrypt in yaSSL before 1.9.9, as used in mysqld in
MySQL 5.0.x before 5.0.90, MySQL 5.1.x before 5.1.43, MySQL 5.5.x through
5.5.0-m2, and other products, allow remote attackers to execute arbitrary
code or cause a denial of service (memory corruption and daemon crash) by
establishing an SSL connection and sending an X.509 client certificate with
a crafted name field, as demonstrated by mysql\_overflow1.py and the
vd\_mysql5 module in VulnDisco Pack Professional 8.11. NOTE: this was
originally reported for MySQL 5.0.51a.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2009-4484?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| mysql-5.1 | 11.04 natty | Fixed 5.1.41-3ubuntu7 |
| 10.10 maverick | Fixed 5.1.41-3ubuntu7 |
| 10.04 LTS lucid | Not in release |
| 9.10 karmic | Not in release |
| 9.04 jaunty | Not in release |
| 8.04 LTS hardy | Not in release |
| 6.06 LTS dapper | Not in release |
| mysql-dfsg-5.0 | 11.04 natty | Not in release |
| 10.10 maverick | Not in release |
| 10.04 LTS lucid | Not in release |
| 9.10 karmic | Ignored end of life |
| 9.04 jaunty | Fixed 5.1.30really5.0.75-0ubuntu10.3 |
| 8.10 intrepid | Fixed 5.0.67-0ubuntu6.1 |
| 8.04 LTS hardy | Fixed 5.0.51a-3ubuntu5.5 |
| 6.06 LTS dapper | Fixed 5.0.22-0ubuntu6.06.12 |
| mysql-dfsg-5.1 | 11.04 natty | Not in release |
| 10.10 maverick | Not in release |
| 10.04 LTS lucid | Fixed 5.1.41-3ubuntu7 |
| 9.10 karmic | Fixed 5.1.37-1ubuntu5.1 |
| 9.04 jaunty | Ignored end of life |
| 8.10 intrepid | Not in release |
| 8.04 LTS hardy | Not in release |
| 6.06 LTS dapper | Not in release |

---

* [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-2009-4484?format=md#patch-details)

## Notes

---

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

PoC: http://intevydis.com/mysql\_overflow1.py.txt

### 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 |
| --- | --- |
| mysql-dfsg-5.0 | * Upstream:   <http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.0/revision/2837.1.1> |
| mysql-dfsg-5.1 | * Upstream:   <http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.1/revision/3311.1.3> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4484)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-4484)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-4484)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2009-4484)

### Related Ubuntu Security Notices (USN)

+ [USN-897-1](https://usn.ubuntu.com/USN-897-1)
+ MySQL vulnerabilities
+ 10 February 2010

+ [USN-1397-1](https://usn.ubuntu.com/USN-1397-1)
+ MySQL vulnerabilities
+ 12 March 2012

### Other references

* <http://intevydis.blogspot.com/2010/01/mysq-yassl-stack-overflow.html>
* <https://www.cve.org/CVERecord?id=CVE-2009-4484>