Patch Tuesday brings little relief from browser exploits

Posted by   Virus Bulletin on   Jul 15, 2009

Six fixes issued, but new IE zero day emerges along with Firefox flaw.

Microsoft has issued its monthly 'Patch Tuesday' security update, with some serious browser flaws patched, but a new IE zero-day has been seen being exploited in the wild, and Firefox users have also been warned about a serious vulnerability.

The Patch Tuesday release contained a total of six bulletins, of which three were ranked 'Critical'. These included cover for some of the DirectShow vulnerabilities uncovered and exploited in the wild in recent weeks, but it seems users of Windows are doomed never to rest easy, as details of another zero-day, this time in Microsoft Office Web Components, were widely publicised just the day before Patch Tuesday, with reports of active exploitation on malicious websites hosted in China.

Other serious vulnerabilities addressed by the Patch Tuesday updates include problems with the 'Embedded OpenType Font Engine', a selection of issues with ActiveX, and in the less significant category, vulnerabilities in VirtualPC and Virtual Server, ISA Server and Office Publisher.

The Firefox bug is in the Javascript compiler system, and affects the latest version, 3.5. Like the IE problems, it could be exploited by malicious sites to allow remote system access. A blog entry on the issue is on the Mozilla security pages here, with a Secunia overview here.

The full Patch Tuesday release from Microsoft is here, with an advisory on the latest problem to emerge here - Secunia's coverage of it is here, and a McAfee blog entry detailing the exploitation is here.

Posted on 15 July 2009 by Virus Bulletin

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

VB2020 TIPS presentations: cybercrime in the DACH region and ransomware in LATAM

As part of VB2020 localhost we were proud to co-host the Threat Intelligence Practitioners' Summmit (TIPS), put together by the Cyber Threat Alliance. In a series of blog posts we highlight some of the talks presented in the Summit and the important…

VB2020 TIPS presentation: Intelligence Sharing for Supply Chain Security

As part of VB2020 localhost we were proud to co-host the Threat Intelligence Practitioners' Summmit (TIPS), put together by the Cyber Threat Alliance. In a series of blog posts we highlight some of the talks presented in the Summit and the important…

VB2020 localhost is over, but the content is still available to view!

VB2020 localhost - VB's first foray into the world of virtual conferences - took place last week, but you can still watch all the presentations.

New additions complete the VB2020 localhost programme

The programme for VB2020 localhost - the first virtual, and entirely free to attend VB conference - is now complete, with new additions to both the live programme and the on-demand programme.

VB2020 localhost call for last minute papers: a unique opportunity

Why VB2020 localhost presents a unique opportunity for you to share your research with security experts around the globe.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.