National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2006-4925 Detail

Description

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.

Source:  MITRE
Description Last Modified:  09/28/2006

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
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.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.gentoo.org/show_bug.cgi?id=148228 Exploit Patch
http://www.mandriva.com/security/advisories?name=MDKSA-2006:179
http://www.novell.com/linux/security/advisories/2006_24_sr.html
http://www.novell.com/linux/security/advisories/2006_62_openssh.html
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/packet.c.diff?r1=1.144&r2=1.145&f=h
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html
http://www.securityfocus.com/archive/1/archive/1/447153/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/447861/100/200/threaded
https://issues.rpath.com/browse/RPL-661
https://issues.rpath.com/browse/RPL-681

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2006-4925
NVD Published Date:
09/28/2006
NVD Last Modified:
09/15/2010