Fixing security vulnerabilities
Microsoft has released 10 security updates fixing a record number of Patch Tuesday holes, including one for a critical hole in Internet Explorer 8 that was exploited as part of a hacking contest at CanSecWest in March.
The bulletin addresses 31 vulnerabilities. “It’s the most since Microsoft started releasing updates on a regular schedule of the second Tuesday of every month in October 2003,” a Microsoft spokesman said.
The June security Patch Tuesday bulletin resolves eight vulnerabilities in IE, the more severe of which could allow remote code execution if a user views a specially crafted Web page. The IE8 vulnerability does not affect Windows 7 RC (build 7100), but does affect Windows 7 beta.
The updates also plug two critical holes in implementations of Active Directory on Windows 2000 Server and Windows Server 2003, and Active Directory Application Mode installed on Windows XP Professional and Server 2003, the worse of which could allow an attacker to take control of a system remotely.
The security update fixes three critical vulnerabilities in Windows Print Spooler that could allow remote code execution if an affected server received a specially crafted RPC (remote procedure call) request.
Several vulnerabilities in Office Word and Excel are addressed in the update that could allow an attacker to remotely run code or take control of the machine using a specially crafted Word or Excel file. The update fixes the PowerPoint vulnerability Microsoft warned in April was being exploited in limited, targeted attacks that was fixed in the Windows version last month.
“We didn’t see any in-the-wild exploitations of the (IIS WebDav) vulnerability but typically when Microsoft releases those alerts they’re doing it because a customer” has alerted them to an exploit,
said Steve Manzuik, senior manager of security research at Juniper Networks.
Also fixed is a critical vulnerability in Microsoft Works Converters, important vulnerabilities in RPC and Windows Kernel. And Microsoft fixed a moderate vulnerability in Windows Search that could allow
information disclosure if a user performs a search that returns a specially crafted file as the first result, or if the user previews a malicious file from the search results. By default, the Windows Search component is not preinstalled on Windows XP and Server 2003.
Other affected software includes Office Excel Viewer; Office Word Viewer; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats; Works 8.5 and 9.0; and Office SharePoint Server. (Source: Microsoft issues patches – CNET News-Security)
Second up was Adobe with it’s first quarterly update.
In a security advisory, Adobe said that the vulnerabilities would cause applications to crash and potentially enable an attacker to take control of an affected system. None of the flaws are being actively exploited, according to Adobe.
The advisory said that users of Reader and Acrobat should update their products to versions 9.1.2, 8.1.6, or 7.1.3. The updates apply to Windows and Macintosh, but updates for Adobe Reader on UNIX platforms will have to wait until June 16.
Specifically, the updates address issues such as stack overflow, memory corruption and heap overflow vulnerabilities that could potentially lead to code execution. (Source: Adobe patches Reader and Acrobat for “critical vulnerabilities – SC Magazine US)
If you haven’t already done so it would be wise to apply the released patches.
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- Microsoft issues patches, including one for IE exploit (thaibrother.com)
- Microsoft, Adobe warn of critical security flaws (canada.com)
- Companies still dragging their feet with patches (computerworld.com)
- Week in Microsoft: it’s all about IE8 (and Silverlight 3) (arstechnica.com)
Posted on June 10, 2009, in Adobe, Microsoft, Patch Tuesday, PC, Security, Server, vulnerability, Windows and tagged Internet Explorer, Microsoft, Microsoft Office 2004, Microsoft Works Converters, Patch Tuesday, Windows 2000, Windows Server 2003, Windows XP. Bookmark the permalink. Comments Off on Fixing security vulnerabilities.