--- title: 'USN-855-1: libhtml-parser-perl vulnerability | Ubuntu security notices' 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/notices/USN-855-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-855-1 --- # USN-855-1: libhtml-parser-perl vulnerability Publication date 5 November 2009 Overview libhtml-parser-perl vulnerability Releases [9.10](https://ubuntu.com/security/notices?release=karmic) [9.04](https://ubuntu.com/security/notices?release=jaunty) [8.10](https://ubuntu.com/security/notices?release=intrepid) [8.04](https://ubuntu.com/security/notices?release=hardy) [6.06](https://ubuntu.com/security/notices?release=dapper) --- Open side navigation ## Packages * [libhtml-parser-perl](https://ubuntu.com/security/cves?package=libhtml-parser-perl) - ## Details Mark Martinec discovered that HTML::Parser incorrectly handled strings with incomplete entities. An attacker could send specially crafted input to applications that use HTML::Parser and cause a denial of service. ## Update instructions In general, a standard system upgrade is sufficient to effect the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 9.10 karmic | [libhtml-parser-perl](https://launchpad.net/ubuntu/+source/libhtml-parser-perl) –  [3.61-1ubuntu0.1](https://launchpad.net/ubuntu/+source/libhtml-parser-perl/3.61-1ubuntu0.1) | | | | 9.04 jaunty | [libhtml-parser-perl](https://launchpad.net/ubuntu/+source/libhtml-parser-perl) –  [3.59-1ubuntu1.1](https://launchpad.net/ubuntu/+source/libhtml-parser-perl/3.59-1ubuntu1.1) | | | | 8.10 intrepid | [libhtml-parser-perl](https://launchpad.net/ubuntu/+source/libhtml-parser-perl) –  [3.56-1ubuntu2.1](https://launchpad.net/ubuntu/+source/libhtml-parser-perl/3.56-1ubuntu2.1) | | | | 8.04 hardy | [libhtml-parser-perl](https://launchpad.net/ubuntu/+source/libhtml-parser-perl) –  [3.56-1ubuntu0.1](https://launchpad.net/ubuntu/+source/libhtml-parser-perl/3.56-1ubuntu0.1) | | | | 6.06 dapper | [libhtml-parser-perl](https://launchpad.net/ubuntu/+source/libhtml-parser-perl) –  [3.48-1ubuntu0.1](https://launchpad.net/ubuntu/+source/libhtml-parser-perl/3.48-1ubuntu0.1) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2009-3627](https://ubuntu.com/security/CVE-2009-3627)