Skip to main content
MSRC

2011

MS11-034: Addressing vulnerabilities in the win32k subsystem

Tuesday, April 12, 2011

Today we released security bulletin MS11-034 to address vulnerabilities in the win32k subsystem. This update addresses externally reported issues as well as several internally found vulnerabilities that were discovered as part of our variant investigation. The bulletin may appear to address an alarmingly large number of issues. However, if you dig into the issues themselves, you’ll find that the 30 vulnerabilities addressed in this update really just share three separate vulnerability root causes: insufficient validation or locking of win32k objects after a user-mode callback.

Advance Notification Service for the April 2011 Bulletin Release

Thursday, April 07, 2011

Hello everyone, My name is Pete Voss, and I’m a senior response communications manager with Microsoft Trustworthy Computing. I’ll be joining the rest of the team on the MSRC blog and @MSFTSecResponse Twitter handle to help provide you with the latest information and guidance for Microsoft security. Today, we’re providing advanced notification on the release of 17 security bulletins, nine rated Critical and eight rated Important.

Microsoft Releases Security Advisory 2524375

Wednesday, March 23, 2011

Hello - Today we’re releasing Security Advisory 2524375, to address nine fraudulent digital certificates issued by Comodo Group Inc, a root certificate authority. Comodo has since revoked the digital certificates. This is not a Microsoft security vulnerability; however, one of the certificates potentially affects Windows Live ID users via login.live.com. These certificates may be used to spoof content, perform phishing attacks, or perform man-in-the-middle attacks against end users.

Q&A from the March 2011 Security Bulletin Webcast

Friday, March 11, 2011

Hello, Today we published the March Security Bulletin Webcast Questions & Answers page. We fielded five questions on various topics during the webcast, including bulletins released, deployment tools, and update detection tools. We invite our customers to join us for the next public webcast on Wednesday, April 13th at 11am PDT (-8 UTC), when we will go into detail about the March bulletin release and answer questions live on the air.