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 remote host is affected by the vulnerability described in GLSA-201206-34 (msmtp: X.509 NULL spoofing vulnerability)

    A vulnerability have been discovered in msmtp. Please review the CVE       identifier referenced below for details.
  Impact :

    A remote attacker might employ a specially crafted certificate to       conduct man-in-the-middle attacks on SSL connections made using msmtp.
  Workaround :

    There is no known workaround at this time.

msmtp did not properly handle a '0' character in the domain name of SSL certificates (CVE-2009-3942).

ID	Name	Product	Family	Severity
59707	GLSA-201206-34 : msmtp: X.509 NULL spoofing vulnerability	Nessus	Gentoo Local Security Checks	medium
44091	openSUSE Security Update : msmtp (msmtp-1813)	Nessus	SuSE Local Security Checks	medium
44089	openSUSE Security Update : msmtp (msmtp-1813)	Nessus	SuSE Local Security Checks	medium
44087	openSUSE Security Update : msmtp (msmtp-1813)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2009-3942

medium

Tenable Plugins

medium

medium

medium

medium