Multiple vulnerabilities have been discovered in Pidgin, a multi-protocol instant messaging client: CVE-2013-6477 Jaime Breva Ribes discovered that a remote XMPP user can trigger a crash by sending a message with a timestamp in the distant future. CVE-2013-6478 Pidgin could be crashed through overly wide tooltip windows. CVE-2013-6479 Jacob Appelbaum discovered that a malicious server or a "man in the middle" could send a malformed HTTP header resulting in denial of service. CVE-2013-6481 Daniel Atallah discovered that Pidgin could be crashed through malformed Yahoo! P2P messages. CVE-2013-6482 Fabian Yamaguchi and Christian Wressnegger discovered that Pidgin could be crashed through malformed MSN messages. CVE-2013-6483 Fabian Yamaguchi and Christian Wressnegger discovered that Pidgin could be crashed through malformed XMPP messages. CVE-2013-6484 It was discovered that incorrect error handling when reading the response from a STUN server could result in a crash. CVE-2013-6485 Matt Jones discovered a buffer overflow in the parsing of malformed HTTP responses. CVE-2013-6487 Yves Younan and Ryan Pentney discovered a buffer overflow when parsing Gadu-Gadu messages. CVE-2013-6489 Yves Younan and Pawel Janic discovered an integer overflow when parsing MXit emoticons. CVE-2013-6490 Yves Younan discovered a buffer overflow when parsing SIMPLE headers. CVE-2014-0020 Daniel Atallah discovered that Pidgin could be crashed via malformed IRC arguments.