CVE ID:	CVE-2009-4147
Description:	The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld- elf/rtld.c in FreeBSD 7.1 and 8.0 does not clear the (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH environment variables, which allows local users to gain privileges by executing a setuid or setguid program with a modified variable containing an untrusted search path that points to a Trojan horse library, different vectors than CVE-2009-4146.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2009-4147 BugTraq ID: 37154 http://www.securityfocus.com/bid/37154 Bugtraq: 20091130 ** FreeBSD local r00t zeroday (Google Search) http://www.securityfocus.com/archive/1/508142/100/0/threaded Bugtraq: 20091201 Upcoming FreeBSD Security Advisory (Google Search) http://www.securityfocus.com/archive/1/508146/100/0/threaded http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html http://www.securitytracker.com/id?1023250 http://secunia.com/advisories/37517