The 64 bit ELF support in Linux kernel 2.6 before 2.6.10, on 64-bit architectures, does not properly check for overlapping VMA (virtual memory address) allocations, which allows local users to cause a denial of service (system crash) or execute arbitrary code via a crafted ELF or a.out file.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9512
https://exchange.xforce.ibmcloud.com/vulnerabilities/18886
http://www.trustix.org/errata/2005/0001/
http://www.securityfocus.com/bid/12261
http://www.redhat.com/support/errata/RHSA-2005-043.html
http://www.redhat.com/support/errata/RHSA-2005-017.html
http://www.novell.com/linux/security/advisories/2005_18_kernel.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:022
http://www.debian.org/security/2006/dsa-1082
http://www.debian.org/security/2006/dsa-1070
http://www.debian.org/security/2006/dsa-1069
http://www.debian.org/security/2006/dsa-1067
http://securitytracker.com/id?1012885
http://secunia.com/advisories/20338
http://secunia.com/advisories/20202
http://secunia.com/advisories/20163
http://linux.bkbits.net:8080/linux-2.6/cset%4041a6721cce-LoPqkzKXudYby_3TUmg
http://linux.bkbits.net:8080/linux-2.4/cset%4041c36fb6q1Z68WUzKQFjJR-40Ev3tw