CVE-2009-3942

NameCVE-2009-3942
DescriptionMartin 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
msmtp (PTS)buster1.8.3-1fixed
bullseye1.8.11-2.1fixed
bookworm1.8.23-1fixed
sid, trixie1.8.24-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
msmtpsource(unstable)(not affected)

Notes

- msmtp <not-affected> (uses GnuTLS and not OpenSSL; bug #557324)

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