National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2009-3767 Detail

Description

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Source:  MITRE
Description Last Modified:  10/23/2009

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (07/20/2010)

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-3767 This issue was addressed in the openldap packages as shipped with Red Hat Enterprise Linux 5 and 4 via: https://rhn.redhat.com/errata/RHSA-2010-0198.html and https://rhn.redhat.com/errata/RHSA-2010-0543.html respectively. The Red Hat Security Response Team has rated this issue as having moderate security impact, a future openldap update may address this flaw in Red Hat Enterprise Linux 3.

Official Statement from OpenLDAP (10/30/2009)

OpenLDAP reported this issue and published a patch for it on 2009-07-30. The patch was included in OpenLDAP 2.4.18 which was released on 2009-09-06. The current release of OpenLDAP is available from the following location: http://www.openldap.org/software/download/

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036138.html
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
http://marc.info/?l=oss-security&m=125198917018936&w=2
http://marc.info/?l=oss-security&m=125369675820512&w=2
http://security.gentoo.org/glsa/glsa-201406-36.xml
http://support.apple.com/kb/HT3937
http://www.openldap.org/devel/cvsweb.cgi/libraries/libldap/tls_o.c.diff?r1=1.8&r2=1.11&f=h
http://www.redhat.com/support/errata/RHSA-2010-0543.html
http://www.redhat.com/support/errata/RHSA-2011-0896.html
http://www.vupen.com/english/advisories/2009/3056
http://www.vupen.com/english/advisories/2010/1858
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11178
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7274

References to Check Content

Identifier:
oval:org.mitre.oval:def:11178
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:11178
Identifier:
oval:org.mitre.oval:def:7274
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:7274

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-3767
NVD Published Date:
10/23/2009
NVD Last Modified:
09/18/2017