The silc_channel_message function in ops.c in the SILC 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 message, a different vulnerability than CVE-2011-3594.
Credit:
The information has been provided by Diego Bauche Madero .
When receiving various incoming messages, the SILC protocol plugin failed to validate that a piece of text was UTF-8. In some cases invalid UTF-8 data would lead to a crash. This vulnerability is similar to CVE-2011-3594, but occurs in a different piece of code and was fixed at a later date.
Vendor Status:
Pidgin had issued an update for this vulnerability
