Mission and Overview
NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).
Resource Status
NVD contains:

Last updated: 4/19/2014

CVE Publication rate: 20.03

Email List

NVD provides four mailing lists to the public. For information and subscription instructions please visit NVD Mailing Lists

Workload Index
Vulnerability Workload Index: 8.56
About Us
NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

National Cyber Awareness System

Vulnerability Summary for CVE-2006-5051

Original release date: 09/27/2006
Last revised: 08/08/2011
Source: US-CERT/NIST

Overview

Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 9.3 (HIGH) (AV:N/AC:M/AU:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
Successful code execution exploitation requires that GSSAPI authentication is enabled.

Vendor Statements (disclaimer)

Official Statement from Red Hat (03/14/2007)
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: SECUNIA
Name: 22173
Type: Advisory
External Source: CONFIRM
Name: http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html
External Source: FREEBSD
Name: FreeBSD-SA-06:22.openssh
External Source: BID
Name: 20241
External Source: APPLE
Name: APPLE-SA-2007-03-13
External Source: REDHAT
Name: RHSA-2006:0698
External Source: SECUNIA
Name: 24799
Type: Advisory
External Source: GENTOO
Name: GLSA-200611-06
External Source: SECUNIA
Name: 22245
Type: Advisory
External Source: CONFIRM
Name: http://openssh.org/txt/release-4.4
External Source: OVAL
Name: oval:org.mitre.oval:def:11387
External Source: CONFIRM
Name: http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf
External Source: VUPEN
Name: ADV-2007-1332
External Source: SECUNIA
Name: 22495
External Source: MANDRIVA
Name: MDKSA-2006:179
External Source: CONFIRM
Name: http://docs.info.apple.com/article.html?artnum=305214
External Source: MLIST
Name: [security-announce] 20070409 Globus Security Advisory 2007-02: GSI-OpenSSH vulnerability
US-CERT Vulnerability Note: CERT
Name: TA07-072A
External Source: SECUNIA
Name: 24479
Type: Advisory
External Source: DEBIAN
Name: DSA-1212
External Source: DEBIAN
Name: DSA-1189
External Source: REDHAT
Name: RHSA-2006:0697
External Source: FREEBSD
Name: FreeBSD-SA-06:22
External Source: SECUNIA
Name: 22183
Type: Advisory
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm
External Source: SECUNIA
Name: 22926
Type: Advisory
External Source: SECUNIA
Name: 23680
Type: Advisory
External Source: CONFIRM
Name: http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html
External Source: UBUNTU
Name: USN-355-1
External Source: SECUNIA
Name: 22270
Type: Advisory
External Source: MLIST
Name: [openssh-unix-dev] 20060927 Announce: OpenSSH 4.4 released
External Source: VUPEN
Name: ADV-2006-4329
External Source: VUPEN
Name: ADV-2007-0930
External Source: OPENBSD
Name: [2.9] 015: SECURITY FIX: October 12, 2006
External Source: SECTRACK
Name: 1016940
External Source: SECUNIA
Name: 22487
Type: Advisory
External Source: SUSE
Name: SUSE-SA:2006:062
External Source: SECUNIA
Name: 22196
Type: Advisory
External Source: XF
Name: openssh-signal-handler-race-condition(29254)
External Source: SECUNIA
Name: 22352
Type: Advisory
External Source: SECUNIA
Name: 22208
Type: Advisory
External Source: SECUNIA
Name: 22236
Type: Advisory
External Source: SLACKWARE
Name: SSA:2006-272-02
External Source: SECUNIA
Name: 24805
Type: Advisory
External Source: CONFIRM
Name: http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf
External Source: SECUNIA
Name: 22158
Type: Advisory
US-CERT Vulnerability Note: CERT-VN
Name: VU#851340
External Source: OSVDB
Name: 29264
External Source: SECUNIA
Name: 22823
Type: Advisory
External Source: OPENPKG
Name: OpenPKG-SA-2006.022
External Source: VUPEN
Name: ADV-2006-4018
External Source: MLIST
Name: [freebsd-security] 20061002 FreeBSD Security Advisory FreeBSD-SA-06:22.openssh
External Source: SECUNIA
Name: 22362
Type: Advisory
External Source: SGI
Name: 20061001-01-P
External Source: CONFIRM
Name: http://sourceforge.net/forum/forum.php?forum_id=681763

References to Check Content

Identifier: oval:org.mitre.oval:def:11387
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

Skip Navigation Links.
Collapse Configuration 1Configuration 1
Collapse OROR
* cpe:/a:openbsd:openssh:1.2
* cpe:/a:openbsd:openssh:1.2.1
* cpe:/a:openbsd:openssh:1.2.2
* cpe:/a:openbsd:openssh:1.2.27
* cpe:/a:openbsd:openssh:1.2.3
* cpe:/a:openbsd:openssh:2.1
* cpe:/a:openbsd:openssh:2.1.1
* cpe:/a:openbsd:openssh:2.2
* cpe:/a:openbsd:openssh:2.3
* cpe:/a:openbsd:openssh:2.5
* cpe:/a:openbsd:openssh:2.5.1
* cpe:/a:openbsd:openssh:2.5.2
* cpe:/a:openbsd:openssh:2.9
* cpe:/a:openbsd:openssh:2.9.9
* cpe:/a:openbsd:openssh:2.9.9p2
* cpe:/a:openbsd:openssh:2.9p1
* cpe:/a:openbsd:openssh:2.9p2
* cpe:/a:openbsd:openssh:3.0
* cpe:/a:openbsd:openssh:3.0.1
* cpe:/a:openbsd:openssh:3.0.1p1
* cpe:/a:openbsd:openssh:3.0.2
* cpe:/a:openbsd:openssh:3.0.2p1
* cpe:/a:openbsd:openssh:3.0p1
* cpe:/a:openbsd:openssh:3.1
* cpe:/a:openbsd:openssh:3.1p1
* cpe:/a:openbsd:openssh:3.2
* cpe:/a:openbsd:openssh:3.2.2
* cpe:/a:openbsd:openssh:3.2.2p1
* cpe:/a:openbsd:openssh:3.2.3p1
* cpe:/a:openbsd:openssh:3.3
* cpe:/a:openbsd:openssh:3.3p1
* cpe:/a:openbsd:openssh:3.4
* cpe:/a:openbsd:openssh:3.4p1
* cpe:/a:openbsd:openssh:3.5
* cpe:/a:openbsd:openssh:3.5p1
* cpe:/a:openbsd:openssh:3.6
* cpe:/a:openbsd:openssh:3.6.1
* cpe:/a:openbsd:openssh:3.6.1p1
* cpe:/a:openbsd:openssh:3.6.1p2
* cpe:/a:openbsd:openssh:3.7
* cpe:/a:openbsd:openssh:3.7.1
* cpe:/a:openbsd:openssh:3.7.1p1
* cpe:/a:openbsd:openssh:3.7.1p2
* cpe:/a:openbsd:openssh:3.8
* cpe:/a:openbsd:openssh:3.8.1
* cpe:/a:openbsd:openssh:3.8.1p1
* cpe:/a:openbsd:openssh:3.9
* cpe:/a:openbsd:openssh:3.9.1
* cpe:/a:openbsd:openssh:3.9.1p1
* cpe:/a:openbsd:openssh:4.0
* cpe:/a:openbsd:openssh:4.0p1
* cpe:/a:openbsd:openssh:4.1p1
* cpe:/a:openbsd:openssh:4.2
* cpe:/a:openbsd:openssh:4.2p1
* cpe:/a:openbsd:openssh:4.3
* cpe:/a:openbsd:openssh:4.3p1
* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)