National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2006-4925 Detail


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      Last Modified:  09/28/2006

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
(AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
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.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name Exploit; Patch External Source MISC External Source MANDRIVA MDKSA-2006:179 External Source SUSE SUSE-SR:2006:024 External Source SUSE SUSE-SA:2006:062 External Source CONFIRM External Source OPENPKG OpenPKG-SA-2006.022 External Source BUGTRAQ 20060927 rPSA-2006-0174-1 gnome-ssh-askpass openssh openssh-client openssh-server External Source BUGTRAQ 20061005 rPSA-2006-0185-1 gnome-ssh-askpass openssh openssh-client openssh-server External Source CONFIRM External Source CONFIRM

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1

Denotes Vulnerable Software
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