Ubuntu Security Notice 1273-1 - Marius Wachtler discovered that Pidgin incorrectly handled malformed YMSG messages in the Yahoo! protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 10.04 LTS and 10.10. Marius Wachtler discovered that Pidgin incorrectly handled HTTP 100 responses in the MSN protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. Various other issues were also addressed.
427e2e9a5b920f0b25f9f9b3c39fe9ad971c32495eb39a7878a1e2fcbfef91eeMandriva Linux Security Advisory 2011-132 - Multiple vulnerabilities have been identified and fixed in pidgin. It was found that the gdk-pixbuf GIF image loader routine gdk_pixbuf__gif_image_load() did not properly handle certain return values from its subroutines. A remote attacker could provide a specially-crafted GIF image, which, once opened in Pidgin, would lead gdk-pixbuf to return a partially initialized pixbuf structure. Various other issues were also addressed.
eaf6bc4bf66d4b776855519d1cbcc90bbe420368f1e1d0834c2cd1a506f8aebfMandriva Linux Security Advisory 2011-132 - Multiple vulnerabilities have been identified and fixed in pidgin. These issues include a null pointer dereference and a memory access bypass.
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