libsecurity in Apple Mac OS X before 10.7.2 does not properly handle errors during processing of a nonstandard extension in a Certificate Revocation list (CRL), which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) a crafted (1) web site or (2) e-mail message.

Format string vulnerability in the debug-logging feature in Application Firewall in Apple Mac OS X before 10.7.2 allows local users to gain privileges via a crafted name of an executable file.

IOGraphics in Apple Mac OS X through 10.6.8 does not properly handle a locked-screen state in display sleep mode for an Apple Cinema Display, which allows physically proximate attackers to bypass the password requirement via unspecified vectors.

The File Systems component in Apple Mac OS X before 10.7.2 does not properly track the specific X.509 certificate that a user manually accepted for an initial https WebDAV connection, which allows man-in-the-middle attackers to hijack WebDAV communication by presenting an arbitrary certificate for a subsequent connection.

Buffer overflow in QuickTime in Apple Mac OS X before 10.7.2 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted FlashPix file.

The Keychain implementation in Apple Mac OS X 10.6.8 and earlier does not properly handle an untrusted attribute of a Certification Authority certificate, which makes it easier for man-in-the-middle attackers to spoof arbitrary SSL servers via an Extended Validation certificate, as demonstrated by https access with Safari.

Absolute path traversal vulnerability in xftpd in the FTP Server component in Apple Mac OS X before 10.6.8 allows remote attackers to list arbitrary directories by using the root directory as the starting point of a recursive listing.

Integer overflow in ColorSync in Apple Mac OS X before 10.6.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an image containing a crafted embedded ColorSync profile that triggers a heap-based buffer overflow.

Heap-based buffer overflow in ImageIO in Apple Mac OS X before 10.6.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted JPEG2000 image.

Off-by-one error in the CoreFoundation framework in Apple Mac OS X before 10.6.8 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a CFString object that triggers a buffer overflow.