Apple Mac OS X contains multiple vulnerabilities that could allow attackers to bypass security protections, gain access to sensitive information, or execute arbitrary code on a targeted system.
The vulnerabilities are due to multiple flaws within core Mac OS X components as well as third-party components, such as PostgreSQL and Ruby. An attacker could bypass local security controls on vulnerable systems to gain unauthorized access to the system or by convincing users to open malicious websites, documents, or images. If successful, the attacker could gain unauthorized system access or execute arbitrary code on the targeted system.
Apple has released a security announcement at the following link: OS X Mountain Lion v10.8.3 and Security Update 2013-001
Apple has released software updates available at the following links:
Administrators are advised to apply the appropriate updates.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.