Vulnerability CVE-2012-6084
Published: 2013-01-01

Description:
modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Ratbox IRCd Denial Of Service
UberLame
04.01.2013

Type:

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Ratbox -> Ircd-ratbox 
Ircd-ratbox -> Ircd-ratbox 

 References:
https://github.com/atheme/charybdis/commit/ac0707aa61d9c20e9b09062294701567c9f41595.patch
http://www.stack.nl/~jilles/irc/charybdis-3.4.2.tbz2
http://www.ratbox.org/download/ircd-ratbox-3.0.8.tar.bz2
http://openwall.com/lists/oss-security/2013/01/01/4
http://rabbit.dereferenced.org/~nenolod/ASA-2012-12-31.txt
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