Race condition in WebKit in Apple iOS before 6.0.1 and Safari before 6.0.2 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving JavaScript arrays.

The Passcode Lock implementation in Apple iOS before 6.0.1 does not properly manage the lock state, which allows physically proximate attackers to bypass an intended passcode requirement and access Passbook passes via unspecified vectors.

The extensions APIs in the kernel in Apple iOS before 6.0.1 provide kernel addresses in responses that contain an OSBundleMachOHeaders key, which makes it easier for remote attackers to bypass the ASLR protection mechanism via a crafted app.

libxslt 1.1.26 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly manage memory, which might allow remote attackers to cause a denial of service (application crash) via a crafted XSLT expression that is not properly identified during XPath navigation, related to (1) the xsltCompileLocationPathPattern function in libxslt/pattern.c and (2) the xsltGenerateIdFunction function in libxslt/functions.c.

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly support a cast of an unspecified variable during handling of XSL transforms, which allows remote attackers to cause a denial of service or possibly have unknown other impact via a crafted document, related to the _xmlNs data structure in include/libxml/tree.h.

Multiple integer overflows in libxml2, as used in Google Chrome before 20.0.1132.43 and other products, on 64-bit Linux platforms allow remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Off-by-one error in libxml2, as used in Google Chrome before 19.0.1084.46 and other products, allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via unknown vectors.