WebKit, as used in Apple Safari before 5.0.4 and iOS before 4.3, does not properly handle redirects in conjunction with HTTP Basic Authentication, which might allow remote web servers to capture credentials by logging the Authorization HTTP header.

Integer overflow in QuickLook, as used in Apple Mac OS X before 10.6.7 and MobileSafari in Apple iOS before 4.2.7 and 4.3.x before 4.3.2, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a Microsoft Office document with a crafted size field in the OfficeArtMetafileHeader, related to OfficeArtBlip, as demonstrated on the iPhone by Charlie Miller and Dion Blazakis during a Pwn2Own competition at CanSecWest 2011.

Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.5; iOS before 4.3.2 for iPhone, iPod, and iPad; iOS before 4.2.7 for iPhone 4 (CDMA); and possibly other products allows remote attackers to execute arbitrary code by adding children to a WBR tag and then removing the tag, related to text nodes, as demonstrated by Chaouki Bekrar during a Pwn2Own competition at CanSecWest 2011.

Networking in Apple iOS before 4.2 accesses an invalid pointer during the processing of packet filter rules, which allows local users to gain privileges via unspecified vectors.

Apple iOS before 4.2 does not properly validate signatures before displaying a configuration profile in the configuration installation utility, which allows remote attackers to spoof profiles via unspecified vectors.

Heap-based buffer overflow in the GSM mobility management implementation in Telephony in Apple iOS before 4.2 on the iPhone and iPad allows remote attackers to execute arbitrary code on the baseband processor via a crafted Temporary Mobile Subscriber Identity (TMSI) field.

WebKit in Apple iOS before 4.2 allows remote attackers to bypass the remote image loading setting in Mail via an HTML LINK element with a DNS prefetching property, as demonstrated by an HTML e-mail message that uses a LINK element for X-Confirm-Reading-To functionality, a related issue to CVE-2010-3813.

Photos in Apple iOS before 4.2 enables support for HTTP Basic Authentication over an unencrypted connection, which allows man-in-the-middle attackers to read MobileMe account passwords by spoofing a MobileMe Gallery server during a "Send to MobileMe" action.

iAd Content Display in Apple iOS before 4.2 allows man-in-the-middle attackers to make calls via a crafted URL in an ad.

FaceTime in Apple iOS before 4.1 on the iPhone and iPod touch does not properly handle invalid X.509 certificates, which allows man-in-the-middle attackers to redirect calls via a crafted certificate.