Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : irssi vulnerability (USN-800-1)

Medium Nessus Plugin ID 39787


The remote Ubuntu host is missing one or more security-related patches.


It was discovered that irssi did not properly check the length of strings when processing WALLOPS messages. If a user connected to an IRC network where an attacker had IRC operator privileges, a remote attacker could cause a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected irssi, irssi-dev and / or irssi-text packages.

Plugin Details

Severity: Medium

ID: 39787

File Name: ubuntu_USN-800-1.nasl

Version: $Revision: 1.10 $

Type: local

Agent: unix

Published: 2009/07/14

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:irssi, p-cpe:/a:canonical:ubuntu_linux:irssi-dev, p-cpe:/a:canonical:ubuntu_linux:irssi-text, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10, cpe:/o:canonical:ubuntu_linux:9.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/07/13

Reference Information

CVE: CVE-2009-1959

BID: 35399

OSVDB: 54977

USN: 800-1

CWE: 189