Apple has issued a security update for Mac OS X, which fixes various vulnerabilities.

1) A vulnerability in the Apache "mod_digest_apple" authentication can be exploited by malicious people to conduct replay attacks.

2) Multiple vulnerabilities in Apache and mod_ssl can be exploited to inject potentially malicious characters into error logfiles, bypass certain security restrictions, gain escalated privileges, gain unauthorised access to other web sites, cause a DoS (Denial of Service), and potentially compromise a vulnerable system.

For more information:
SA8146
SA10789
SA11170
SA11534
SA11841
SA12787
SA12898

3) A security issue in Apache results in access to ".DS_Store" files and files starting with ".ht" not being fully blocked. The problem is that the Apache configuration blocks access in a case sensitive way, but the Apple HFS+ filesystem performs file access in a case insensitive way.

4) A security issue in Apache makes it possible to bypass the normal Apache file handlers and retrieve file data and resource fork content via HTTP. The problem is that the Apple HFS+ filesystem permits files to have multiple data streams.

NOTE: This issue may also affect other products installed on the HFS+ filesystem.

5) Multiple vulnerabilities in Apache2 can be exploited by malicious people to cause a DoS or potentially compromise a system, or by malicious, local users to gain escalated privileges.

For more information:
SA12434
SA12540

6) A security issue in Appkit causes secure text fields to not enable secure input correctly in some circumstances. This allows other applications in the same window session to read the entered characters.

7) Multiple vulnerabilities in Appkit can potentially be exploited by malicious people to compromise a user's system or cause a DoS (Denial of Service).

For more information:
SA12818

8) A vulnerability in Cyrus IMAP when using Kerberos authentication can be exploited by malicious, authenticated users to access other mailboxes on the system.

9) A security issue in HIToolbox can be exploited by malicious users to quit applications in kiosk mode via a certain key combination.

10) Multiple vulnerabilities have been reported in Kerberos, where the most serious potentially can be exploited by malicious people to compromise a vulnerable system.

For more information:
SA12408

11) A vulnerability in Postfix when using CRAM-MD5 can be exploited by malicious users to send mails without being properly authenticated. The problem is that the credentials used to successfully authenticate a user can be re-used for a small time period, which can be exploited via replay attacks.

12) A vulnerability in PSNormalizer can potentially be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error when converting PostScript to PDF.

13) A vulnerability in QuickTime Streaming Server can be exploited by malicious people to cause a DoS via a specially crafted DESCRIBE request.

14) A weakness in Safari can be exploited by malicious people to trick users into visiting a malicious web site by obfuscating URLs.

For more information:
SA13047

15) A vulnerability in Safari can be exploited by malicious web sites to spoof dialog boxes.

For more information:
SA12892

16) A weakness in Terminal may result in the "Secure Keyboard Entry" menu setting erroneously looking like it is active when it's not.

Solution
Apply Security Update 2004-12-02.
Further details available in Customer Area

Provided and/or discovered by
4) NetSec
8) Johan Gradvall
9) Glenn Blauvelt
11) Victor Duchovni
13) Anonymous person via iDEFENSE
15) Secunia Research
16) Jonathan "Wolf" Rentzsch

Changelog
Further details available in Customer Area

Original Advisory
iDEFENSE:
http://idefense.com/application/poi/display?id=159&type=vulnerabilities

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area