National Cyber-Alert System
Vulnerability Summary for CVE-2006-0883
Original release date:03/07/2006
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
- Official Statement from Red Hat (08/30/2006)
-
This issue did not affect the versions of OpenSSH as distributed with Red Hat Enterprise Linux 2.1, 3, or 4.
References to Advisories, Solutions, and Tools
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External Source: BID
Name: 16892
Type: Patch Information
External Source: VUPEN
Name: ADV-2006-0805
Type: Advisory; Patch Information
External Source: SECTRACK
Name: 1015706
Type: Patch Information
External Source: FREEBSD
Name: FreeBSD-SA-06:09
External Source: XF
Name: openssh-openpam-dos(25116)
External Source: OSVDB
Name: 23797
External Source: SREASON
Name: 520
External Source: CONFIRM
Name: http://bugzilla.mindrot.org/show_bug.cgi?id=839
