苹果官方在前天发布了本月的安全更新，主要更新列表如下：

- Alias Manager. Impact: Users may be misled into opening a substituted file
- BIND. Impact: Multiple vulnerabilities in BIND, the most serious of which is remote denial of service
- CoreGraphics. Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution
- crontabs. Impact: The daily /tmp cleanup script may lead to a denial of service
- fetchmail. Impact: fetchmail password disclosure may be possible
- file. Impact: Running the file command on a maliciously crafted file may lead to an unexpected application termination or arbitrary code execution
- iChat. Impact: An attacker on the local network may be able to cause a denial of service or arbitrary code execution
- mDNSResponder. Impact: An attacker on the local network may be able to cause a denial of service or arbitrary code execution
- PPP. Impact: A local user may obtain system privileges
- ruby. Impact: Denial of service vulnerabilities in the Ruby CGI library
- screen. Impact: Multiple denial of service vulnerabilities in GNU Screen
- texinfo. Impact: A vulnerability in texinfo may allow arbitrary files to be overwritten
- VPN. Impact: A local user may obtain system privileges

下载：apple.com/support/downloads，或者：

• Mac OS X 10.3.9 (个人用户) (56 MB)
• Mac OS X 10.3.9 (Server 版本) (42.5 MB)
• Mac OS X 10.4.x (PowerPC) (15.7 MB)
• Mac OS X 10.4.4 (Intel) (29.2 MB, 由 Mac OS X v10.4.4 起)