Microsoft patches will put IT on hunt for affected systems
Microsoft Tuesday released four critical patches targeting vulnerabilities mostly in Windows-based server and client operating systems, including one that affected 42 versions of various Microsoft software products. Network World, 09/09/2008.

Microsoft patch wrap-up advisory

US-CERT advisory
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Apple releases four new upgrades that feature security fixes
At Apple's much-hyped (though somewhat underwhelming) launch event on Tuesday, the company rolled out a number of product updates that also fix some serious security issues. Chief among the fixes is a new update for iPhone (ver 2.1) and update for QuickTime that patches a vulnerability that could have been exploited to run malicious code.

Apple advisories:

QuickTime 7.5.5

iTunes 8.0

iPod touch 2.1

Bonjour for Windows 1.0.5
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Critical vulnerability patched in Google's Chrome
A Vietnamese security company has found a critical vulnerability in Google's new browser Chrome, but Google has already released patch for that problem and at least one more. Users should upgrade to version 0.2.149.29 via the "Check for Updates" menu option. IDG News Service, 09/08/2008.
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Three new updates from Gentoo:

Amarok (temp file vulnerability)

libTIFF (code execution)

VLC (multiple flaws)
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Two new patches from Mandriva:

Postfix (denial of service)

ClamAV (multiple flaws)
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Two new fixes from Ubuntu:

Racoon (memory leak, denial of service)

libxml2 (denial of service)
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Today's malware news:

What's The Latest Buzz?
The 2008 US Presidential Election is well on its way, and what news could be more enticing than an alleged sex scandal involving one of the candidates? The latest e-mail spam run on the loose contains a link to an supposed pornographic video of Democratic candidate Senator Barack Obama. F-Secure, 09/10/2008.

Infection Links target Orkut Users On Twitter
Orkut has long been a popular target for hackers, and we've come across evidence of Orkut users being targeted via Twitter pages carrying infection links. The SpywareGuide Greynets Blog, 09/08/2008.
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From the interesting reading department:

Flawed Trend Micro antivirus update cripples PCs
Antivirus updates issued by Trend Micro Inc. on Friday crippled Windows XP and Vista PCs when they mistook several critical system files for malware, and blocked access to those files. Computerworld, 09/09/2008.

Jason Meserve is multimedia editor at Network World.