Test ID:	1.3.6.1.4.1.25623.1.0.800634
Category:	Denial of Service
Title:	Irssi Off-by-one Read/Write DoS Vulnerability - Linux
Summary:	Irssi is prone to a denial of service (DoS) vulnerability.
Description:	Summary: Irssi is prone to a denial of service (DoS) vulnerability. Vulnerability Insight: Off-by-one error in the 'event_wallops' function in fe-common/irc/fe-events.c when processing empty commands sent by IRC servers, which triggers a one-byte buffer under-read and a one-byte buffer underflow. Vulnerability Impact: Successful exploitation will allow attackers to cause memory corruption, and can crash an affected application by tricking a user into connecting to a malicious IRC server. Affected Software/OS: Irssi version 0.8.13 and prior on Linux Solution: No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2009-1959 BugTraq ID: 35399 http://www.securityfocus.com/bid/35399 https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html http://www.mandriva.com/security/advisories?name=MDVSA-2009:133 http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/ http://www.openwall.com/lists/oss-security/2009/05/29/3 http://www.securitytracker.com/id?1022410 http://secunia.com/advisories/35685 http://secunia.com/advisories/35812 http://secunia.com/advisories/36152 SuSE Security Announcement: SUSE-SR:2009:012 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html http://www.ubuntu.com/usn/usn-800-1 http://www.vupen.com/english/advisories/2009/1596 XForce ISS Database: irssi-eventwallops-dos(51184) https://exchange.xforce.ibmcloud.com/vulnerabilities/51184
Copyright	Copyright (C) 2009 Greenbone AG

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