The NSURL component in Apple Mac OS X 10.4 through 10.4.10 performs case-sensitive comparisons that allow attackers to bypass intended restrictions for local file system URLs.
docs.info.apple.com/article.html?artnum=307041
lists.apple.com/archives/security-announce/2007/Nov/msg00002.html
secunia.com/advisories/27643
securitytracker.com/id?1018950
www.securityfocus.com/bid/26444
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www.vupen.com/english/advisories/2007/3868
exchange.xforce.ibmcloud.com/vulnerabilities/38478