National Cyber-Alert System
Vulnerability Summary for CVE-2006-4925
Original release date:09/29/2006
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.
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 (10/31/2006)
-
Red Hat does not consider this flaw a security issue. This flaw can cause an OpenSSH client to crash when connecting to a malicious server, which does not result in a denial of service condition.
References to Advisories, Solutions, and Tools
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External Source: MISC
Name: http://bugs.gentoo.org/show_bug.cgi?id=148228
Type: Patch Information
External Source: CONFIRM
Name: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/packet.c.diff?r1=1.144&r2=1.145&f=h
External Source: SUSE
Name: SUSE-SR:2006:024
External Source: SECUNIA
Name: 22245
External Source: MANDRIVA
Name: MDKSA-2006:179
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-681
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-661
External Source: BUGTRAQ
Name: 20061005 rPSA-2006-0185-1 gnome-ssh-askpass openssh openssh-client openssh-server
External Source: BUGTRAQ
Name: 20060927 rPSA-2006-0174-1 gnome-ssh-askpass openssh openssh-client openssh-server
External Source: OPENPKG
Name: OpenPKG-SA-2006.022
External Source: SUSE
Name: SUSE-SA:2006:062
External Source: MANDRIVA
Name: MDKSA-2006:179
External Source: SECUNIA
Name: 23038
External Source: SECUNIA
Name: 22495
External Source: SECUNIA
Name: 22298