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 LDDEBUG for a setuid program, which allows local users to gain sensitive information, such as the list of symbols used by the program.

The glibcbug script in glibc 2.3.4 and earlier allows local users to overwrite arbitrary files via a symlink attack on temporary files, a different vulnerability than CVE-2004-0968.

The catchsegv script in glibc 2.3.2 and earlier allows local users to overwrite files via a symlink attack on temporary files.

glibc2 does not properly clear the LDDEBUGOUTPUT and LDDEBUG environmental variables when a program is spawned from a setuid program, which could allow local users to overwrite files via a symlink attack.