Buffer overflow in the IDENT daemon (identd) in Trillian 0.6351, 0.725, 0.73, 0.74 and 1.0 pro allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long request.

Heap-based buffer overflow in the Rendezvous / Extensible Messaging and Presence Protocol (XMPP) component (plugins\rendezvous.dll) for Cerulean Studios Trillian Pro before 3.1.5.1 allows remote attackers to execute arbitrary code via a message that triggers the overflow from expansion that occurs during encoding.

Heap-based buffer overflow in the XML parser in the AIM plugin in Trillian before 3.1.12.0 allows remote attackers to execute arbitrary code via a malformed XML tag.

Stack-based buffer overflow in the image tooltip implementation in Trillian before 3.1.12.0 allows remote attackers to execute arbitrary code via a long image filename, related to "AIM IMG Tag Parsing."

Double free vulnerability in the XML parser in Trillian before 3.1.12.0 allows remote attackers to execute arbitrary code via a crafted XML expression, related to the "IMG SRC ID."

Buffer overflow in the AOL Instant Messenger (AIM) protocol handler in AIM.DLL in Cerulean Studios Trillian allows remote attackers to execute arbitrary code via a malformed aim: URI, as demonstrated by a long URI beginning with the aim:///#1111111/ substring.

Heap-based buffer overflow in Cerulean Studios Trillian 3.x before 3.1.6.0 allows remote attackers to execute arbitrary code via a message sent through the MSN protocol, or possibly other protocols, with a crafted UTF-8 string, which triggers improper memory allocation for word wrapping when a window width is used as a buffer size, a different vulnerability than CVE-2007-2478.

Multiple heap-based buffer overflows in the IRC component in Cerulean Studios Trillian Pro before 3.1.5.1 allow remote attackers to corrupt memory and possibly execute arbitrary code via (1) a URL with a long UTF-8 string, which triggers the overflow when the user highlights it, or (2) a font HTML tag with a face attribute containing a long UTF-8 string.

Stack-based buffer overflow in Cerulean Studios Trillian before 3.1.10.0 allows remote attackers to execute arbitrary code via unspecified attributes in the X-MMS-IM-FORMAT header in an MSN message.

Buffer overflow in the Display Names message feature in Cerulean Studios Trillian Basic and Pro 3.1.9.0 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long nickname in an MSN protocol message.

Buffer overflow in Trillian 3.0 and Pro 3.0 allows remote attackers to execute arbitrary code via a crafted PNG image file.

Integer overflow in Trillian 0.74 and earlier, and Trillian Pro 2.01 and earlier, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a directIM packet that triggers a heap-based buffer overflow.

Multiple buffer overflows in the IRC component of Trillian 0.73 and 0.74 allows remote malicious IRC servers to cause a denial of service and possibly execute arbitrary code via (1) a large response from the server, (2) a JOIN with a long channel name, (3) a long "raw 221" message, (4) a PRIVMSG with a long nickname, or (5) a long response from an IDENT server.

Buffer overflow in the MSN module in Trillian 0.74i allows remote MSN servers to execute arbitrary code via a long string that ends in a newline character.

Stack-based buffer overflow in Trillian 0.71 through 0.74f and Trillian Pro 1.0 through 2.01 allows remote attackers to execute arbitrary code via a Yahoo Messenger packet with a long key name.

Buffer overflow in Trillian 0.73 allows remote IRC servers to execute arbitrary code via a long PING response.

Buffer overflow in the IRC module of Trillian 0.725 and 0.73 allowing remote attackers to execute arbitrary code via a long DCC Chat message.

Format string vulnerability in the error handling of IRC invite responses for Trillian 0.725 and 0.73 allows remote IRC servers to execute arbitrary code via an invite to a channel with format string specifiers in the name.

Cerulean Studios Trillian Pro before 3.1.5.1 allows remote attackers to obtain potentially sensitive information via long CTCP PING messages that contain UTF-8 characters, which generates a malformed response that is not truncated by a newline, which can cause portions of a server message to be sent to the attacker.

Buffer overflow in the XML parser of Trillian 0.6351, 0.725 and 0.73 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a skin with a long colors file name in trillian.xml.

Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different vulnerability than CVE-2009-4831.

Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.

AOL Instant Messenger (AIM) 4.7.2480 and earlier allows remote attackers to cause a denial of service (application crash) via an instant message that contains a large amount of "<!--" HTML comments.

Cerulean Studios Trillian 3.0 allows remote attackers to cause a denial of service (crash) via a reverse direct connection from a different client, as demonstrated using LICQ.

Multiple buffer overflows in the (1) AIM, (2) MSN, (3) RSS, and other plug-ins for Trillian 2.0 allow remote web servers to cause a denial of service (application crash) via a long string in an HTTP 1.1 response header.

Trillian 1.0 Pro and 0.74 Freeware allows remote attackers to cause a denial of service (crash) via a TypingUser message in which the "TypingUser" string has been modified.

Multiple buffer overflows in the Yahoo plug-in for Trillian 2.0, 3.0, and 3.1 allow remote web servers to cause a denial of service (application crash) via a long string in an HTTP 1.1 response header.

The IRC component of Trillian 0.73 and 0.74 allows remote malicious IRC servers to cause a denial of service (crash) by sending the raw messages (1) 206, (2) 211, (3) 213, (4) 214, (5) 215, (6) 217, (7) 218, (8) 243, (9) 302, (10) 317, (11) 324, (12) 332, (13) 333, (14) 352, and (15) 367.

The IRC component of Trillian 0.73 and 0.74 allows remote malicious IRC servers to cause a denial of service (crash) via a PART message with (1) a missing channel or (2) a channel that the Trillian user is not in.

The AIM component of Trillian 0.73 and 0.74 allows remote attackers to cause a denial of service (crash) via certain strings such as "P > O < C".