CVE-2011-4601 Denial of service in n/a
Remote attackers can crash Pidgin via crafted AIM or ICQ messages due to missing UTF-8 validation in the oscar protocol plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4601?
CVE-2011-4601 is a medium-severity denial of service vulnerability in Pidgin Pidgin, published on 25 Dec 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
family_feedbag.c in the oscar protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted (1) AIM or (2) ICQ message associated with buddy-list addition.
Weakness: CWE-20
Which versions are affected by CVE-2011-4601?
It affects 1 product.
Products include Pidgin Pidgin.
How do I fix CVE-2011-4601?
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-2011-4601 being exploited?
There is no known exploitation of CVE-2011-4601 in the wild and no public exploit code.
Other vulnerabilities in Pidgin Pidgin
Sources
Also known as DEBIAN-CVE-2011-4601, GHSA-j8rm-cj64-mfw6.