CVE-2018-16831

NameCVE-2018-16831
DescriptionSmarty before 3.1.33-dev-4 allows attackers to bypass the trusted_dir protection mechanism via a file:./../ substring in an include statement.
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)
Debian Bugs908698

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
smarty3 (PTS)jessie (security), jessie3.1.21-1+deb8u2fixed
stretch (security), stretch3.1.31+20161214.1.c7d42e4+selfpack1-2+deb9u1vulnerable
buster, sid3.1.33+20180830.1.3a78a21f+selfpack1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
smarty3source(unstable)3.1.33+20180830.1.3a78a21f+selfpack1-1908698
smarty3sourcejessie(not affected)

Notes

[jessie] - smarty3 <not-affected> (vulnerable code not present)
https://github.com/smarty-php/smarty/issues/486
CVE is about the include tag as an attack vector.
vulnerable code introduced in realpath() rewrite (c09b05cbe) released in 3.1.28

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