Mandriva Linux Security Advisory 2011-050 - It was discovered that libpurple versions prior to 2.7.10 do not properly clear certain data structures used in libpurple/cipher.c prior to freeing. An attacker could potentially extract partial information from memory regions freed by libpurple. The Yahoo protocol plugin in libpurple versions 2.6.0 through 2.7.10 do not properly handle malformed YMSG packets, leading to NULL pointer dereferences and application crash.
6946f9cf77da9559208045f1b25444c5b5032dbb9a51384c41139be8a379b5d6