Apple's fourth Leopard spits out 25 patches

Apple has coughed up 25 security updates that come bundled with yesterday's release of Mac OS X 10.5.4.

The firm said its latest Leopard release addresses operating system and application performance issues and fixes a heap of security flaws.

The update affects operating system components that include CoreTypes, c++filt, Net-SNMP, Ruby, Tomcat, VPN, Alias Manager and Webkit.

Six of the vulnerabilities affect the Ruby programming language. Apple said: "Multiple memory corruption issues exist in Ruby's handling of strings and arrays, the most serious of which may lead to arbitrary code execution."

The company said the update fixes the bug