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

1) Alias Manager does not display identically-named files contained in identically-named mounted disk images. This can be exploited by malicious people to execute a malicious application by tricking a user into mounting two identically-named disk images.

2) Some errors in BIND can be exploited by malicious people to cause a DoS (Denial of Service).

For more information:
SA21752
SA23904

3) An integer overflow error in CoreGraphics when processing a PDF file can be exploited by malicious people to execute arbitrary code.

This does not affect systems prior to Mac OS X v10.4.

4) An error in crontabs may cause a DoS when filesystems mounted in /tmp gets deleted when the daily cleanup script is executed.

5) An error within the APOP implementation of fetchmail may be exploited by malicious people to disclose a user's password.

6) An integer underflow error within file's "file_printf" function can be exploited by malicious people to cause a heap-based buffer overflow.

For more information:
SA24548

7) An error in iChat's UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) module can be exploited by malicious people to cause a buffer overflow by sending a specially crafted packet to the application.

8) An error in mDNSResponder's UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) module can be exploited by malicious people to cause a buffer overflow by sending a specially crafted packet to the application.

This does not affect systems prior to Mac OS X v10.4.

9) Insufficient access validation in pppd when processing the "plugin" command line option can be exploited by malicious, local users to load arbitrary plugins and gain escalated privileges.

This does not affect systems prior to Mac OS X v10.4.

10) Two vulnerabilities in ruby can be exploited by malicious people to cause a DoS.

For more information:
SA13123

11) Errors in screen can be exploited by malicious people to cause a DoS or potentially compromise a vulnerable system.

For more information:
SA22583

12) An error in texinfo can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges.

For more information see vulnerability #1 in:
SA16816

13) A format string error in vpnd can be exploited by malicious, local users to gain escalated privileges by running vpnd with specially crafted arguments.

Solution
Apply Security Update 2007-005.
Further details available to Secunia VIM customers

Provided and/or discovered by
The vendor credits:
1) Greg Bolsinga, Blurb, Inc.
8) Michael Lynn, Juniper Networks
9) An anonymous person, reported via iDefense Labs
13) Chris Anley, NGSSoftware

Changelog
Further details available to Secunia VIM customers

Original Advisory
Apple:
http://docs.info.apple.com/article.html?artnum=305530

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=537

NGSSoftware:
http://www.ngssoftware.com/advisories/high-risk-vulnerability-in-mac-os-x/

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers