The OpenGL implementation in Apple Mac OS X before 10.7.3 does not properly perform OpenGL Shading Language (aka GLSL) compilation, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted program.

Use-after-free vulnerability in CoreText in Apple Mac OS X before 10.7.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted embedded font in a document.

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.

Address Book in Apple Mac OS X before 10.7.3 automatically switches to unencrypted sessions upon failure of encrypted connections, which allows remote attackers to read CardDAV data by terminating an encrypted connection and then sniffing the network.

Integer overflow in libresolv in Apple Mac OS X before 10.7.3 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via crafted DNS data.

CFNetwork in Apple iOS before 5.0.1 and Mac OS X 10.7 before 10.7.2 does not properly parse URLs, which allows remote attackers to trigger visits to unintended web sites, and transmission of cookies to unintended web sites, via a crafted (1) http or (2) https URL.

The SMB File Server component in Apple Mac OS X 10.7 before 10.7.2 does not prevent all guest users from accessing the share point record of a guest-restricted folder, which allows remote attackers to bypass intended browsing restrictions by leveraging access to the nobody account.

Integer signedness error in Apple Type Services (ATS) in Apple Mac OS X 10.7 before 10.7.2 allows remote attackers to execute arbitrary code via a crafted embedded Type 1 font in a document.

The CoreProcesses component in Apple Mac OS X 10.7 before 10.7.2 does not prevent a system window from receiving keystrokes in the locked-screen state, which might allow physically proximate attackers to bypass intended access restrictions by typing into this window.