Trillian IRC Oversized Data Block Remote Overflow DoS

Medium Nessus Network Monitor Plugin ID 1868


The remote host is vulnerable to a Denial of Service (DoS) attack.


The remote host is running the Trillian IRC client. Trillian version 0.74 and possibly other versions are vulnerable to a Denial of Service attack, caused by a buffer overflow. By sending more than 4095 characters to a vulnerable Trillian client, a remote attacker in control of a malicious IRC server could overflow a buffer and cause the victim's Trillian client to crash.


Upgrade or patch according to vendor recommendations.

Plugin Details

Severity: Medium

ID: 1868

File Name: 1868.prm

Family: IRC Clients

Published: 2004/08/20

Modified: 2016/11/23

Dependencies: 1878

Risk Information

Risk Factor: Medium


Base Score: 5.4

Temporal Score: 4.5

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C


Base Score: 5.8

Temporal Score: 5.3


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Reference Information

CVE: CVE-2002-1486

BID: 5777, 5765, 5769