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Last updated: 7/28/2014 10:37:53 PM

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Vulnerability Summary for CVE-2006-4925

Original release date: 09/28/2006
Last revised: 09/15/2010
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):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
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 service

Vendor Statements (disclaimer)

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.

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External Source: SECUNIA
Name: 22298
External Source: SECUNIA
Name: 23038
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: MISC
Name: http://bugs.gentoo.org/show_bug.cgi?id=148228
Type: Patch Information; Exploit
External Source: SECUNIA
Name: 22495
External Source: SUSE
Name: SUSE-SA:2006:062
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-681
External Source: OPENPKG
Name: OpenPKG-SA-2006.022
External Source: MANDRIVA
Name: MDKSA-2006:179
External Source: BUGTRAQ
Name: 20061005 rPSA-2006-0185-1 gnome-ssh-askpass openssh openssh-client openssh-server
External Source: SECUNIA
Name: 22245
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-661
External Source: BUGTRAQ
Name: 20060927 rPSA-2006-0174-1 gnome-ssh-askpass openssh openssh-client openssh-server

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