--- title: "CVE-2007-0981\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-2007-0981?format=md keywords: index, follow --- # CVE-2007-0981 Publication date 16 February 2007 Last updated 17 July 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Mozilla based browsers, including Firefox before 1.5.0.10 and 2.x before 2.0.0.2, and SeaMonkey before 1.0.8, allow remote attackers to bypass the same origin policy, steal cookies, and conduct other attacks by writing a URI with a null byte to the hostname (location.hostname) DOM property, due to interactions with DNS resolver code. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 7.10 gutsy | Not affected | | 7.04 feisty | Fixed 2.0.0.6+1-0ubuntu1 | | 6.10 edgy | Fixed 2.0.0.6+0dfsg-0ubuntu0.6.10 | | 6.06 LTS dapper | Fixed 1.5.dfsg+1.5.0.13~prepatch070731-0ubuntu1 | | iceape | 7.10 gutsy | Fixed 1.1.4-1ubuntu2 | | 7.04 feisty | Not in release | | 6.10 edgy | Not in release | | 6.06 LTS dapper | Not in release | | lightning-sunbird | 7.10 gutsy | Fixed 0.5-0ubuntu4 | | 7.04 feisty | Not in release | | 6.10 edgy | Not in release | | 6.06 LTS dapper | Not in release | | midbrowser | 7.10 gutsy | Fixed 0.1.6b-0ubuntu2 | | 7.04 feisty | Not in release | | 6.10 edgy | Not in release | | 6.06 LTS dapper | Not in release | | xulrunner | 7.10 gutsy | Fixed 1.8.0.10-3ubuntu1 | | 7.04 feisty | Fixed 1.8.0.10-3ubuntu1 | | 6.10 edgy | Ignored end of life, was needed | | 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-2007-0981) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2007-0981) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2007-0981) * [Debian](https://security-tracker.debian.org/tracker/CVE-2007-0981) ### Related Ubuntu Security Notices (USN) + [USN-428-1](https://usn.ubuntu.com/USN-428-1) + Firefox vulnerabilities + 1 March 2007 ### Other references *