--- title: "CVE-2007-5340\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-2007-5340?format=md keywords: index, follow --- # CVE-2007-5340 Publication date 21 October 2007 Last updated 17 July 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Multiple vulnerabilities in the Javascript engine in Mozilla Firefox before 2.0.0.8, Thunderbird before 2.0.0.8, and SeaMonkey before 1.1.5 allow remote attackers to cause a denial of service (crash) via crafted HTML that triggers memory corruption. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 7.10 gutsy | Fixed 2.0.0.8+2nobinonly-0ubuntu1 | | 7.04 feisty | Fixed 2.0.0.8+1nobinonly-0ubuntu1 | | 6.10 edgy | Fixed 2.0.0.8+0dfsg-0ubuntu0.6.10 | | 6.06 LTS dapper | Fixed 1.5.dfsg+1.5.0.14~prepatch071011b-0ubuntu1 | | mozilla-thunderbird | 7.04 feisty | Fixed 1.5.0.13+1.5.0.14b-0ubuntu0.7.04 | | 6.10 edgy | Fixed 1.5.0.13+1.5.0.14b-0ubuntu0.6.10 | | 6.06 LTS dapper | Fixed 1.5.0.13+1.5.0.14b-0ubuntu0.6.06 | | thunderbird | 7.10 gutsy | Fixed 2.0.0.8~pre071022+nobinonly-0ubuntu0.7.10 | --- * [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-2007-5340) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2007-5340) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2007-5340) * [Debian](https://security-tracker.debian.org/tracker/CVE-2007-5340) ### Related Ubuntu Security Notices (USN) + [USN-536-1](https://usn.ubuntu.com/USN-536-1) + Thunderbird vulnerabilities + 23 October 2007 + [USN-535-1](https://usn.ubuntu.com/USN-535-1) + Firefox vulnerabilities + 22 October 2007 ### Other references *