Martin Lambers msmtp up to 1.4.8 cryptographic issues

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Martin Lambers msmtp up to 1.4.8. It has been rated as critical. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is integrity, and availability. CVE summarizes:

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.

The weakness was disclosed 11/16/2009 (Website). The advisory is available at This vulnerability is handled as CVE-2009-3942. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 44091 (openSUSE Security Update : msmtp (msmtp-1813)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165248 (SUSE Security Update for Multiple Packages (SUSE-SR:2010:001)).

Upgrading to version 1.4.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (44091). The entries 51649, 51617, 51613 and 51612 are pretty similar.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
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Class: Cryptographic issues
CWE: CWE-310
ATT&CK: T1600

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 44091
Nessus Name: openSUSE Security Update : msmtp (msmtp-1813)
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OpenVAS ID: 71560
OpenVAS Name: Gentoo Security Advisory GLSA 201206-34 (msmtp)
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: msmtp 1.4.9


11/16/2009 🔍
11/16/2009 +0 days 🔍
11/16/2009 +0 days 🔍
11/16/2009 +0 days 🔍
01/20/2010 +65 days 🔍
01/25/2010 +5 days 🔍
03/18/2015 +1878 days 🔍
08/27/2021 +2354 days 🔍


Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3942 (🔍)
Vulnerability Center: 24671 - OpenSSL Msmtp prior to 1.4.19 Arbitrary SSL Servers Spoofing Vulnerability via a Crafted Certificate, Medium

See also: 🔍


Created: 03/18/2015 03:15 PM
Updated: 08/27/2021 10:01 PM
Changes: 03/18/2015 03:15 PM (59), 02/20/2017 10:10 AM (6), 08/27/2021 09:51 PM (4), 08/27/2021 10:01 PM (1)
Complete: 🔍


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