Mirabilis ICQ WebFront Plug-in ICQ2000b Build 3278 allows a remote attacker to create a denial of service via HTTP URL requests containing a large number of % characters.
ICQ Web Front HTTPd allows remote attackers to cause a denial of service by requesting a URL that contains a "?" character.
ICQ 2001a and 2002b allows remote attackers to cause a denial of service (memory consumption and hang) via a contact message with a large contacts number.
icqateimg32.dll parsing/rendering library in Mirabilis ICQ Pro 2003a allows remote attackers to cause a denial of service via malformed GIF89a headers that do not contain a GCT (Global Color Table) or an LCT (Local Color Table) after an Image Descriptor.
The guestbook CGI program in ICQ Web Front service for ICQ 2000a, 99b, and others allows remote attackers to cause a denial of service via a URL with a long name parameter.
AOL ICQ 2002a Build 3722 allows remote attackers to cause a denial of service (crash) via a malformed .hpf file.
The Message Session window in Mirabilis ICQ Pro 2003a allows remote attackers to cause a denial of service (CPU consumption) by spoofing the address of an ADS server and sending HTML with a -1 width in a table tag.