The Restrictions (aka Parental Controls) implementation in Apple iOS before 6 does not properly handle purchase attempts after a Disable Restrictions action, which allows local users to bypass an intended Apple ID authentication step via an app that performs purchase transactions.
Safari in Apple iOS before 6 does not properly restrict use of an unspecified Unicode character that looks similar to the https lock indicator, which allows remote attackers to spoof https connections by placing this character in the TITLE element of a web page.
The System Logs implementation in Apple iOS before 6 does not restrict /var/log access by sandboxed apps, which allows remote attackers to obtain sensitive information via a crafted app that reads log files.
Telephony in Apple iOS before 6 uses an SMS message's return address as the displayed sender address, which allows remote attackers to spoof text communication via a message in which the return address does not match the originating address.
Off-by-one error in Telephony in Apple iOS before 6 allows remote attackers to cause a denial of service (buffer overflow and connectivity outage) via a crafted user-data header in an SMS message.
UIWebView in UIKit in Apple iOS before 6 does not properly use the Data Protection feature, which allows context-dependent attackers to obtain cleartext file content by leveraging direct access to a device's filesystem.
WebKit, as used in Apple iOS before 6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
The Sorenson codec in QuickTime in Apple Mac OS X before 10.7.5, and in CoreMedia in iOS before 6, accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted movie file with Sorenson encoding.
CFNetwork in Apple iOS before 6 does not properly identify the host portion of a URL, which allows remote attackers to obtain sensitive information by leveraging the construction of an HTTP request with an incorrect hostname derived from a malformed URL.
The DNAv4 protocol implementation in the DHCP component in Apple iOS before 6 sends Wi-Fi packets containing a MAC address of a host on a previously used network, which might allow remote attackers to obtain sensitive information about previous device locations by sniffing an unencrypted Wi-Fi network for these packets.