Race condition in Linux kernel 2.6.17.4 and earlier allows local users to gain root privileges by using prctl with PR_SET_DUMPABLE in a way that causes /proc/self/environ to become setuid root.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10060
https://exchange.xforce.ibmcloud.com/vulnerabilities/27790
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=198973
http://www.vupen.com/english/advisories/2006/2816
http://www.ubuntu.com/usn/usn-319-2
http://www.securityfocus.com/bid/18992
http://www.securityfocus.com/archive/1/440300/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2006-0617.html
http://www.novell.com/linux/security/advisories/2006_49_kernel.html
http://www.novell.com/linux/security/advisories/2006_47_kernel.html
http://www.novell.com/linux/security/advisories/2006_42_kernel.html
http://www.novell.com/linux/security/advisories/2006_17_sr.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:124
http://www.debian.org/security/2006/dsa-1111
http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm
http://secunia.com/advisories/22174
http://secunia.com/advisories/21605
http://secunia.com/advisories/21498
http://secunia.com/advisories/21179
http://secunia.com/advisories/21123
http://secunia.com/advisories/21119
http://secunia.com/advisories/21073
http://secunia.com/advisories/21057
http://secunia.com/advisories/21041
http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/047907.html