Multiple serious vulnerabilities have been found in Pidgin. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary programs and other unknown impact. Below is a complete list of vulnerabilities

1. Improper traffic restrictions can be exploited remotely via a specially designed message;
2. An unknown vulnerability can be exploited remotely via specially designed SOAP or OIM XML responses, Content-Length header, Yahoo! P2P message or specially designed files in messages;
3. An integer overflow can be exploited remotely via a specially designed Content-Length header, emoticon or timestamp;
4. Improper protocol implementation can be exploited remotely via a specially designed STUN server;
5. A buffer overflow can be exploited remotely via a specially designed chunk-size field;
6. Improper library interaction can be exploited remotely via a specially designed URL;

Pidgin versions earlier than 2.10.8

Update to latest version
Pidgin