The MITRE CVE dictionary describes this issue as:
When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that preloaded libraries in /etc/ld.so.cache are also SUID/SGID, which could allow a local user to overwrite arbitrary files by loading a library from /lib or /usr/lib.
Red Hat security errata
|Red Hat Linux 6.0||RHSA-2001:002||January 15, 2001|
|Red Hat Linux 6.1||RHSA-2001:002||January 15, 2001|
|Red Hat Linux 6.2||RHSA-2001:002||January 15, 2001|
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For clarification or corrections please contact the Red Hat Security Response Team.