Patch Analysis for June 2007

This month we get an interesting mix of security patches from Microsoft.  None of these are at the “the sky is falling!” level of severity and all of the patches are Workstation/Terminal Server focused; if you are a server only admin you can probably relax provided you don’t engage in end-user activities such as web browsing or working with documents or email while logged on at the server.  I think you are prudent to conduct full testing before any deployment.  Several of the patches might be altogether avoidable depending on your environment including MS07-034 (Windows Mail and Outlook Express) as well as MS07-032 (Windows Vista only patch).   Exploit details are public for 2 of the bulletins but due to other mitigating factors noted in the chart below I’m not recommending accelerated testing.

BulletinExploit Types
/Technologies Affected
System Types AffectedExploit
details public?
/ Being exploited?
MS severity ratingProducts AffectedNotesRandy's recommendation

Arbitrary code

/ Visio
Terminal Servers
No/NoNoImportant Office 2003
NonePatch after testing unless exploit details become public, then patch ASAP or block Visio files at perimeter

Arbitrary code

/ Outlook Express and Windows Mail
Terminal Servers
Yes/NoYesCritical XP
Server 2003
4 different vulnerabilities with varying severity depending on OSPatch after testing or prevent users from using Windows Mail and Outlook Express

Information disclosure

/ Windows Vista
No/NoNoModerate Vista
Mostly an issue for shared workstations or environments where end-users lack administrator authority on their workstationsPatch after testing if an issue for your environment

Arbitrary code

/ IE
Terminal Servers
Yes/NoNoCritical Win2000
Server 2003
6 different vulnerabilities Only one is public and risk is limited to spoofed web pagesPatch after testing

Arbitrary code

/ Windows
Terminal Servers
No/NoYesCritical Win2000
Server 2003
NonePatch after testing unless exploit details become public, then patch ASAP

Arbitrary code

/ Windows
Terminal Servers
No/NoNoCritical Win2000
Server 2003
Mostly likely even on XP to cause denial of service instead of arbitrary code executionPatch after testing

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