ltdl.c in libltdl in GNU Libtool 1.5.x, and 2.2.6 before 2.2.6b, as used in Ham Radio Control Libraries, Q, and possibly other products, attempts to open a .la file in the current working directory, which allows local users to gain privileges via a Trojan horse file.
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01512.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6951
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11687
https://bugzilla.redhat.com/show_bug.cgi?id=537941
http://www.vupen.com/english/advisories/2011/0574
http://www.securityfocus.com/bid/37128
http://www.redhat.com/support/errata/RHSA-2010-0039.html
http://www.mandriva.com/security/advisories?name=MDVSA-2010:105
http://www.mandriva.com/security/advisories?name=MDVSA-2010:091
http://www.mandriva.com/security/advisories?name=MDVSA-2010:035
http://www.mandriva.com/security/advisories?name=MDVSA-2009:307
http://support.avaya.com/css/P8/documents/100074869
http://security.gentoo.org/glsa/glsa-201311-10.xml
http://secunia.com/advisories/55721
http://secunia.com/advisories/43617
http://secunia.com/advisories/39347
http://secunia.com/advisories/39299
http://secunia.com/advisories/38915
http://secunia.com/advisories/38696
http://secunia.com/advisories/38617
http://secunia.com/advisories/38577
http://secunia.com/advisories/38190
http://secunia.com/advisories/37997
http://secunia.com/advisories/37489
http://secunia.com/advisories/37414
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
http://lists.gnu.org/archive/html/libtool/2009-11/msg00065.html
http://lists.gnu.org/archive/html/libtool/2009-11/msg00059.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054921.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054915.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054656.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035168.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035133.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://hamlib.svn.sourceforge.net/viewvc/hamlib/trunk/libltdl/Makefile.am?revision=2841&view=markup