Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2009-3942

Severity CVSS v4.0:
Pending analysis
Type:
CWE-310 Cryptographic Issues
Publication date:
16/11/2009
Last modified:
09/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.40
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:martin_lambers:msmtp:*:*:*:*:*:*:*:* 1.4.18 (including)
cpe:2.3:a:martin_lambers:msmtp:0.2.5:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.2.6:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:martin_lambers:msmtp:0.6.2:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools