The msn_oim_report_to_user function in oim.c in the MSN protocol plugin in libpurple in Pidgin before 2.10.2 allows remote servers to cause a denial of service (application crash) via an OIM message that lacks UTF-8 encoding.
Credit:
The information has been provided by Thijs Alkemade .
In some situations the MSN server sends text that isn't UTF-8 encoded, and Pidgin fails to verify the text's encoding. In some cases this can lead to a crash when attempting to display the text.
Vendor Status:
Pidgin had issued an update for this vulnerability