The g_markup_escape_text function in the SILC protocol plug-in in libpurple 2.10.0 and earlier, as used in Pidgin and possibly other products, allows remote attackers to cause a denial of service (crash) via invalid UTF-8 sequences that trigger use of invalid pointers and an out-of-bounds read, related to interactions with certain versions of glib2.
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.
Vendor Status:
Pidgin had issued an update for this vulnerability
