---
title: "CVE-2009-3875\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-2009-3875?format=md
keywords: index, follow
---

# CVE-2009-3875

Publication date 5 November 2009

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun
Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update
17, SDK and JRE 1.3.x before 1.3.1\_27, and SDK and JRE 1.4.x before
1.4.2\_24 allows remote attackers to spoof HMAC-based digital signatures,
and possibly bypass authentication, via unspecified vectors related to
"timing attack vulnerabilities," aka Bug Id 6863503.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| openjdk-6 | 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 9.10 karmic | Fixed 6b16-1.6.1-3ubuntu1 |
| 9.04 jaunty | Fixed 6b14-1.4.1-0ubuntu12 |
| 8.10 intrepid | Fixed 6b12-0ubuntu6.6 |
| 8.04 LTS hardy | Fixed 6b18-1.8.2-4ubuntu1~8.04.1 |
| 6.06 LTS dapper | Not in release |
| sun-java5 | 10.10 maverick | Not in release |
| 10.04 LTS lucid | Not in release |
| 9.10 karmic | Not in release |
| 9.04 jaunty | Ignored end of life |
| 8.10 intrepid | Ignored end of life, was needs-triage |
| 8.04 LTS hardy | Not affected |
| 6.06 LTS dapper | Ignored end of life |
| sun-java6 | 10.10 maverick | Not affected |
| 10.04 LTS lucid | Fixed 6.20dlj-1ubuntu3 |
| 9.10 karmic | Fixed 6.20dlj-0ubuntu1.9.10 |
| 9.04 jaunty | Fixed 6.20dlj-0ubuntu1.9.04 |
| 8.10 intrepid | Ignored end of life, was needs-triage |
| 8.04 LTS hardy | Fixed 6.20dlj-0ubuntu1.8.04 |
| 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)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3875)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-3875)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-3875)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2009-3875)

### Related Ubuntu Security Notices (USN)

+ [USN-859-1](https://usn.ubuntu.com/USN-859-1)
+ OpenJDK vulnerabilities
+ 12 November 2009

### Other references

* <http://sunsolve.sun.com/search/document.do?assetkey=1-66-270475-1>
* <http://java.sun.com/javase/6/webnotes/6u17.html>
* <https://www.cve.org/CVERecord?id=CVE-2009-3875>