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CVE-2009-3767

Date: October 23, 2009

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.

Language: C

Severity Score

3.7

Related Resources (19)

Url: http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html

Url: http://secunia.com/advisories/38769

Url: http://www.vupen.com/english/advisories/2009/3056

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11178

Url: http://www.vupen.com/english/advisories/2010/1858

Url: http://marc.info/?l=oss-security&m=125198917018936&w=2

Url: https://nvd.nist.gov/vuln/detail/CVE-2009-3767

Url: http://marc.info/?l=oss-security&m=125369675820512&w=2

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7274

Url: http://security.gentoo.org/glsa/glsa-201406-36.xml

Url: http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html

Url: https://access.redhat.com/security/cve/CVE-2009-3767

Url: http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036138.html

Url: http://www.redhat.com/support/errata/RHSA-2010-0543.html

Url: http://secunia.com/advisories/40677

Url: http://www.openldap.org/devel/cvsweb.cgi/libraries/libldap/tls_o.c.diff?r1=1.8&r2=1.11&f=h

Url: http://www.redhat.com/support/errata/RHSA-2011-0896.html

Url: http://support.apple.com/kb/HT3937

Url: https://www.mend.io/vulnerability-database/CVE-2009-3767

Severity Score

3.7

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Improper Certificate Validation

CWE-295

CVSS v3.1

Base Score:	3.7
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	LOW
Availability (A):	NONE

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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CVE-2009-3767

Date: October 23, 2009

Language: C

Severity Score

Related Resources (19)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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