Descriptionx3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs706547

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ibm-3270 (PTS)jessie/non-free, stretch/non-free3.3.14ga11-1fixed
buster, sid3.6ga4-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[wheezy] - ibm-3270 <no-dsa> (Non-free not supported)
[squeeze] - ibm-3270 <no-dsa> (Non-free not supported)

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