Menu
Microsoft fixes 45 flaws, including three actively exploited vulnerabilities

Microsoft fixes 45 flaws, including three actively exploited vulnerabilities

Microsoft Patch Tuesday includes fixes for critical flaws in IE, Edge, Office, Windows and .NET

Microsoft released its monthly security-patch bundle Tuesday, fixing 45 unique vulnerabilities, three of which are publicly known and targeted by hackers.

The top priority this month should be given to the Microsoft Office security update because one of the fixed flaws has been actively exploited by attackers since January to infect computers with malware. Over the past few days this vulnerability, tracked as CVE-2017-0199, has seen widespread exploitation.

The CVE-2017-0199 vulnerability can be exploited through maliciously crafted RTF (Rich Text Format) documents when such documents are opened with either Microsoft Word or WordPad. Because WordPad is bundled with Windows by default, a patch for this flaw is also included in the security updates for Windows.

According to security vendor Qualys, the next priority should go to the updates for Microsoft's Internet Explorer and Edge browsers. These update address several remote code execution vulnerabilities.

One flaw patched in IE allows attackers to bypass the cross-domain policies enforced by the browser. The flaw makes it possible to take information from one domain and inject it into another, violating an important security barrier.

Microsoft's notes for this vulnerability mention that it has already been exploited in the wild, but don't include other details about the attacks.

Critical vulnerabilities have also been patched in Hyper-V, Microsoft's virtualization hypervisor that's included in Windows Server 2008, 2012 and 2016, as well as in Windows 8.1 and 10. These vulnerabilities can allow applications running inside a guest operating system to escape the virtual machine and execute malicious code on the host OS.

Finally, a remote code execution vulnerability has been fixed in the Microsoft .NET Framework. This flaw potentially can be exploited by attackers to take complete control of a system running a vulnerable deployment of the framework.

Microsoft has also released a defense-in-depth update for Microsoft Office that disables the Encapsulated PostScript (EPS) filter by default. That's because the company is aware of limited, targeted attacks that try to take advantage of an unpatched vulnerability in this filter.

The Microsoft updates also include third-party critical patches for Flash Player, which is bundled with Internet Explorer 11 and Edge.

This Patch Tuesday bundle is also notable because it marks the end of support for Windows Vista, which will no longer receive security updates after this round of patches.


Follow Us

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Featured

Slideshows

The making of an MSSP: a blueprint for growth in NZ

The making of an MSSP: a blueprint for growth in NZ

Partners are actively building out security practices and services to match, yet remain challenged by a lack of guidance in the market. This exclusive Reseller News Roundtable - in association with Sophos - assessed the making of an MSSP, outlining the blueprint for growth and how partners can differentiate in New Zealand.

The making of an MSSP: a blueprint for growth in NZ
Reseller News Platinum Club celebrates leading partners in 2018

Reseller News Platinum Club celebrates leading partners in 2018

The leading players of the New Zealand channel came together to celebrate a year of achievement at the inaugural Reseller News Platinum Club lunch in Auckland. Following the Reseller News Innovation Awards, Platinum Club provides a platform to showcase the top performing partners and start-ups of the past 12 months, with more than ​​50 organisations in the spotlight.​​​

Reseller News Platinum Club celebrates leading partners in 2018
Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP has honoured its leading partners in New Zealand during 2018, following 12 months of growth through the local channel. Unveiled during the fourth running of the ceremony in Auckland, the awards recognise and celebrate excellence, growth, consistency and engagement of standout Kiwi partners.

Meet the top performing HP partners in NZ
Show Comments