Vulnerability CVE-2006-0883
Published: 2006-03-06   Modified: 2012-02-12

Description:
OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
FreeBSD Security Advisory FreeBSD-SA-06:09.openssh
FreeBSD Security...
02.03.2006

Type:

CWE-399

 (Resource Management Errors)

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
Openbsd -> Openssh 
Freebsd -> Freebsd 

 References:
http://www.securityfocus.com/bid/16892
http://securitytracker.com/id?1015706
http://xforce.iss.net/xforce/xfdb/25116
http://www.vupen.com/english/advisories/2006/0805
http://www.osvdb.org/23797
http://securityreason.com/securityalert/520
http://bugzilla.mindrot.org/show_bug.cgi?id=839
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:09.openssh.asc
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