Description
glibc2 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environmental variables when a program is spawned from a setuid program, which could allow local users to overwrite files via a symlink attack.
References
- 1719 vdb-entry
- glibc-unset-symlink(5299) vdb-entry
- 20000926 ld.so bug - LD_DEBUG_OUTPUT follows symlinks mailing-list