GNU glibc 2.3.4 before 2.3.4.20040619, 2.3.3 before 2.3.3.20040420, and 2.3.2 before 2.3.2-r10 does not restrict the use of LD_DEBUG for a setuid program, which allows local users to gain sensitive information, such as the list of symbols used by the program.
bugs.gentoo.org/show_bug.cgi?id=59526
secunia.com/advisories/12306
www.gentoo.org/security/en/glsa/glsa-200408-16.xml
www.redhat.com/support/errata/RHSA-2005-256.html
www.redhat.com/support/errata/RHSA-2005-261.html
www.securityfocus.com/bid/10963
exchange.xforce.ibmcloud.com/vulnerabilities/17006
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10762