Linux kernel 2.6.x before 2.6.20 allows local users to read unreadable binaries by using the interpreter (PT_INTERP) functionality and triggering a core dump, a variant of CVE-2004-1073.
http://rhn.redhat.com/errata/RHSA-2007-0488.html
http://secunia.com/advisories/24482
http://secunia.com/advisories/24752
http://secunia.com/advisories/24777
http://secunia.com/advisories/25078
http://secunia.com/advisories/25714
http://secunia.com/advisories/25838
http://secunia.com/advisories/26289
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10343
http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm
http://www.debian.org/security/2007/dsa-1286
http://www.debian.org/security/2007/dsa-1304
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20
http://www.mandriva.com/security/advisories?name=MDKSA-2007:060
http://www.mandriva.com/security/advisories?name=MDKSA-2007:078