The URL handler in the manual browser option for Gaim before 0.59.1 allows remote attackers to execute arbitrary script via shell metacharacters in a link.

Stack-based buffer overflow in the URL parsing function in Gaim before 1.3.0 allows remote attackers to execute arbitrary code via an instant message (IM) with a large URL.

Multiple buffer overflows in Gaim before 0.82 allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) Rich Text Format (RTF) messages, (2) a long hostname for the local system as obtained from DNS, or (3) a long URL that is not properly handled by the URL decoder.

Buffer overflow in the MSN protocol plugins (1) object.c and (2) slp.c for Gaim before 0.82 allows remote attackers to cause a denial of service and possibly execute arbitrary code via MSNSLP protocol messages that are not properly handled in a strncpy call.

The smiley theme functionality in Gaim before 0.82 allows remote attackers to execute arbitrary commands via shell metacharacters in the filename of the tar file that is dragged to the smiley selector.

Buffer overflow in the Extract Info Field Function for (1) MSN and (2) YMSG protocol handlers in Gaim 0.74 and earlier, and Ultramagnetic before 0.81, allows remote attackers to cause a denial of service and possibly execute arbitrary code.

Multiple buffer overflows in Gaim 0.75 and earlier, and Ultramagnetic before 0.81, allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) cookies in a Yahoo web connection, (2) a long name parameter in the Yahoo login web page, (3) a long value parameter in the Yahoo login page, (4) a YMSG packet, (5) the URL parser, and (6) HTTP proxy connect.

Buffer overflow in Jabber plug-in for Gaim client before 0.58 allows remote attackers to execute arbitrary code.

Integer overflow in Gaim before 0.82 allows remote attackers to cause a denial of service and possibly execute arbitrary code via the size variable in Groupware server messages.