CVE-2007-4996 Denial of service in n/a
Remote attackers can crash Pidgin by sending MSN nudge messages to users not on their buddy list, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-4996?
CVE-2007-4996 is a medium-severity denial of service vulnerability in Pidgin Pidgin, published on 1 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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."
Which versions are affected by CVE-2007-4996?
It affects 1 product.
Products include Pidgin Pidgin.
How do I fix CVE-2007-4996?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2007-4996 being exploited?
There is no known exploitation of CVE-2007-4996 in the wild and no public exploit code.
Other vulnerabilities in Pidgin Pidgin
Sources
Also known as DEBIAN-CVE-2007-4996, GHSA-r9v7-jgpj-m4mq.