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CVE-2009-3942

Date: November 16, 2009

Martin Lambers msmtp before 1.4.19, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name 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.

Severity Score

Related Resources (6)

http://msmtp.sourceforge.net/news.html
http://www.vupen.com/english/advisories/2009/3224
https://nvd.nist.gov/vuln/detail/CVE-2009-3942
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html
http://secunia.com/advisories/37321
https://www.mend.io/vulnerability-database/CVE-2009-3942

Severity Score

Weakness Type (CWE)

Cryptographic Issues

CWE-310

CVSS v3

Base Score:
Attack Vector (AV):
Attack Complexity (AC):
Privileges Required (PR):
User Interaction (UI):
Scope (S):
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE

CVSS v2

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

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