Multiple directory traversal vulnerabilities in GNU C Library (aka glibc or libc6) before 2.20 allow context-dependent attackers to bypass ForceCommand restrictions and possibly have other unspecified impact via a … (dot dot) in a (1) LC_*, (2) LANG, or other locale environment variable.
linux.oracle.com/errata/ELSA-2015-0092.html
www.debian.org/security/2014/dsa-2976
www.mandriva.com/security/advisories?name=MDVSA-2014:152
www.openwall.com/lists/oss-security/2014/07/10/7
www.openwall.com/lists/oss-security/2014/07/14/6
www.securityfocus.com/bid/68505
www.securitytracker.com/id/1030569
rhn.redhat.com/errata/RHSA-2014-1110.html
security.gentoo.org/glsa/201602-02
sourceware.org/bugzilla/show_bug.cgi?id=17137