Feeds

MS alerts users to Windows DirectX vulnerability

Potentially devastating flaw

  • alert
  • submit to reddit

Securing Web Applications Made Simple and Scalable

Microsoft yesterday warned of security flaws with DirectX's DirectShow component that might be used by an attacker to run hostile code on vulnerable Windows machines.

Redmond has issued a patch - designated as critical - which users are urged to review.

The list of affected software is extensive: Microsoft DirectX 5.2 on Windows 98; MS DirectX 6.1 on Windows 98 SE; DirectX 7.0a and DirectX 9.0a on Windows Me; DirectX and DirectX 9.0a 7.0 on Win 2000; DirectX 8.1 and DirectX 9.0a on Win XP; DirectX 8.1 and DirectX 9.0a on Win Server 2003 are all potentially vulnerable.

So too is Windows NT 4.0 with either Windows Media Player 6.4 or IE 6 SP 1 installed and Microsoft Windows NT 4.0, Terminal Server Edition with either Windows Media Player 6.4 or IE 6 SP 1 installed.

The DirectX APIs are used by Windows programs for multimedia and games support. Within DirectX, DirectShow performs client-side audio and video sourcing, manipulation, and rendering.

Two buffer overrun flaws in the function used by DirectShow to check parameters in a Musical Instrument Digital Interface (MIDI) file create a means to inject malicious code into vulnerable machines, hence the alert.

An attacker could seek to exploit this vulnerability by creating a specially crafted MIDI file designed to exploit this vulnerability and then host it on a Web site or on a network share, or send it by using an HTML-based e-mail. Simply visiting a maliciously constructed site might be enough to get infected, Microsoft warns. If the users open a maliciously constructed HTML email the effect will be the same.

Little wonder that Microsoft designates the problem as critical.

Microsoft's advisory, and links to patches, can be found here.

Credit for finding the problem goes to eEye Digital Security. ®

Mobile application security vulnerability report

More from The Register

next story
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
NEW, SINISTER web tracking tech fingerprints your computer by making it draw
Have you on YouPorn lately, perhaps? White House website?
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
NUDE SNAPS AGENCY: NSA bods love 'showing off your saucy selfies'
Swapping other people's sexts is a fringe benefit, says Snowden
Own a Cisco modem or wireless gateway? It might be owned by someone else, too
Remote code exec in HTTP server hands kit to bad guys
British data cops: We need greater powers and more money
You want data butt kicking, we need bigger boots - ICO
Crooks fling banking Trojan at Japanese smut site fans
Wait - they're doing online banking with an unpatched Windows PC?
prev story

Whitepapers

Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.