--- title: "CVE-2007-4996\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-2007-4996?format=md keywords: index, follow --- # CVE-2007-4996 Publication date 1 October 2007 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description libpurple in Pidgin before 2.2.1 does not properly handle MSN nudge messages from users who are not on the receiver's buddy list, which allows remote attackers to cause a denial of service (crash) via a nudge message that triggers an access of "an invalid memory location." [Read the notes from the security team](https://ubuntu.com/security/CVE-2007-4996?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | gaim | 7.04 feisty | Not affected | | 6.10 edgy | Not affected | | 6.06 LTS dapper | Not affected | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## Notes --- ### [kees](https://launchpad.net/~kees) remote crasher, but only in 2.2 series, it seems based on the patch ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4996) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2007-4996) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2007-4996) * [Debian](https://security-tracker.debian.org/tracker/CVE-2007-4996) ### Other references * *