--- title: 'USN-623-1: Firefox vulnerabilities | 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-623-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-623-1 --- # USN-623-1: Firefox vulnerabilities Publication date 17 July 2008 Overview Firefox vulnerabilities Releases [7.10](https://ubuntu.com/security/notices?release=gutsy) [7.04](https://ubuntu.com/security/notices?release=feisty) [6.06](https://ubuntu.com/security/notices?release=dapper) --- Open side navigation ## Packages * [firefox](https://ubuntu.com/security/cves?package=firefox) - ## Details A flaw was discovered in the browser engine. A variable could be made to overflow causing the browser to crash. If a user were tricked into opening a malicious web page, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. ([CVE-2008-2785](https://ubuntu.com/security/CVE-2008-2785)) Billy Rios discovered that Firefox did not properly perform URI splitting with pipe symbols when passed a command-line URI. If Firefox were passed a malicious URL, an attacker may be able to execute local content with chrome privileges. ([CVE-2008-2933](https://ubuntu.com/security/CVE-2008-2933)) ## Update instructions After a standard system upgrade you need to restart Firefox 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 | | --- | --- | | 7.10 gutsy | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [2.0.0.16+1nobinonly-0ubuntu0.7.10](https://launchpad.net/ubuntu/+source/firefox/2.0.0.16+1nobinonly-0ubuntu0.7.10) | | | | 7.04 feisty | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [2.0.0.16+0nobinonly-0ubuntu0.7.4](https://launchpad.net/ubuntu/+source/firefox/2.0.0.16+0nobinonly-0ubuntu0.7.4) | | | | 6.06 dapper | [firefox](https://launchpad.net/ubuntu/+source/firefox) –  [1.5.dfsg+1.5.0.15~prepatch080614d-0ubuntu1](https://launchpad.net/ubuntu/+source/firefox/1.5.dfsg+1.5.0.15~prepatch080614d-0ubuntu1) | | | --- ### 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-2008-2933](https://ubuntu.com/security/CVE-2008-2933) * [CVE-2008-2785](https://ubuntu.com/security/CVE-2008-2785) ## Related notices * [USN-629-1](https://ubuntu.com/security/notices/USN-629-1) * [USN-626-1](https://ubuntu.com/security/notices/USN-626-1)