Buffer overflow in the MSN protocol handler for gaim 0.79 to 1.0.1 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an "unexpected sequence of MSNSLP messages" that results in an unbounded copy operation that writes to the wrong buffer.
Buffer overflow in the AIM and ICQ module in Gaim before 1.5.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an away message with a large number of AIM substitution strings, such as %t or %n.
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.
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 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.
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.
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.
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.
Gaim 1.2.1 and earlier allows remote attackers to cause a denial of service (application crash) via a malformed MSN message.
Gaim before 1.3.1 allows remote attackers to cause a denial of service (application crash) via a Yahoo! message with non-ASCII characters in a file name.
Gaim before 0.82 allows remote servers to cause a denial of service (application crash) via a long HTTP Content-Length header, which causes Gaim to abort when attempting to allocate memory.