Descriptionstunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs702267

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
stunnel4 (PTS)wheezy3:4.53-1.1fixed
jessie (security), jessie3:5.06-2+deb8u1fixed
stretch, sid3:5.36-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs

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