Use-after-free vulnerability in QuickTime in Apple Mac OS X 10.7.x before 10.7.4 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted movie file with JPEG2000 encoding.

libsecurity in Apple Mac OS X before 10.7.4 accesses uninitialized memory locations during the processing of X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted certificate.

WebDAV Sharing in Apple Mac OS X 10.7.x before 10.7.3 does not properly perform authentication, which allows local users to gain privileges by leveraging access to (1) the server or (2) a bound directory.

CFNetwork in Apple Mac OS X 10.7.x before 10.7.3 does not properly construct request headers during parsing of URLs, which allows remote attackers to obtain sensitive information via a malformed URL.

CoreUI in Apple Mac OS X 10.7.x before 10.7.3 does not properly restrict the allocation of stack memory, which allows remote attackers to execute arbitrary code or cause a denial of service (memory consumption and application crash) via a long URL.