National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2006-5051 Detail

Current Description

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.

Source:  MITRE      Last Modified:  09/27/2006      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2006-5051
Original release date:
09/27/2006
Last revised:
10/10/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
9.3 HIGH
Vector:
(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

Evaluator Impact

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.

Hyperlink Resource Type Source Name
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc External Source FREEBSD FreeBSD-SA-06:22.openssh
ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc External Source SGI 20061001-01-P
http://docs.info.apple.com/article.html?artnum=305214 External Source CONFIRM http://docs.info.apple.com/article.html?artnum=305214
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html External Source APPLE APPLE-SA-2007-03-13
http://lists.freebsd.org/pipermail/freebsd-security/2006-October/004051.html External Source MLIST [freebsd-security] 20061002 FreeBSD Security Advisory FreeBSD-SA-06:22.openssh
http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2 External Source MLIST [openssh-unix-dev] 20060927 Announce: OpenSSH 4.4 released
http://openssh.org/txt/release-4.4 External Source CONFIRM http://openssh.org/txt/release-4.4
http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc External Source FREEBSD FreeBSD-SA-06:22
http://security.gentoo.org/glsa/glsa-200611-06.xml External Source GENTOO GLSA-200611-06
http://securitytracker.com/id?1016940 External Source SECTRACK 1016940
http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566 External Source SLACKWARE SSA:2006-272-02
http://sourceforge.net/forum/forum.php?forum_id=681763 External Source CONFIRM http://sourceforge.net/forum/forum.php?forum_id=681763
http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm External Source CONFIRM http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm
http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf External Source CONFIRM http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf
http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf External Source CONFIRM http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf
http://www.debian.org/security/2006/dsa-1189 External Source DEBIAN DSA-1189
http://www.debian.org/security/2006/dsa-1212 External Source DEBIAN DSA-1212
http://www.kb.cert.org/vuls/id/851340 US Government Resource External Source CERT-VN VU#851340
http://www.mandriva.com/security/advisories?name=MDKSA-2006:179 External Source MANDRIVA MDKSA-2006:179
http://www.novell.com/linux/security/advisories/2006_62_openssh.html External Source SUSE SUSE-SA:2006:062
http://www.openbsd.org/errata.html#ssh External Source OPENBSD [2.9] 015: SECURITY FIX: October 12, 2006
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html External Source OPENPKG OpenPKG-SA-2006.022
http://www.redhat.com/support/errata/RHSA-2006-0697.html External Source REDHAT RHSA-2006:0697
http://www.redhat.com/support/errata/RHSA-2006-0698.html External Source REDHAT RHSA-2006:0698
http://www.securityfocus.com/bid/20241 External Source BID 20241
http://www.ubuntu.com/usn/usn-355-1 External Source UBUNTU USN-355-1
http://www.us-cert.gov/cas/techalerts/TA07-072A.html US Government Resource External Source CERT TA07-072A
http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html External Source CONFIRM http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html
http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html External Source CONFIRM http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html
http://www.vupen.com/english/advisories/2006/4018 External Source VUPEN ADV-2006-4018
http://www.vupen.com/english/advisories/2006/4329 External Source VUPEN ADV-2006-4329
http://www.vupen.com/english/advisories/2007/0930 External Source VUPEN ADV-2007-0930
http://www.vupen.com/english/advisories/2007/1332 External Source VUPEN ADV-2007-1332
http://www-unix.globus.org/mail_archive/security-announce/2007/04/msg00000.html External Source MLIST [security-announce] 20070409 Globus Security Advisory 2007-02: GSI-OpenSSH vulnerability
https://exchange.xforce.ibmcloud.com/vulnerabilities/29254 External Source XF openssh-signal-handler-race-condition(29254)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11387 External Source OVAL oval:org.mitre.oval:def:11387

References to Check Content

Identifier:
oval:org.mitre.oval:def:11387
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:11387

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:openbsd:openssh:1.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:1.2.27:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.3:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.5:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.9:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.9.9:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.9.9p2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.9p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:2.9p2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0.2p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.0p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.2.2p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.2.3p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.3:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.3p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.4:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.4p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.5:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.5p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.6:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.6.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.6.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.6.1p2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.7:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.7.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.7.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.7.1p2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.8:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.8.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.9:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.9.1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:3.9.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.0:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.0p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.1p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.2:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.2p1:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.3:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:4.3p1:*:*:*:*:*:*:*

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

Change History 5 change records found - show changes