Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Risk Management

Google Discloses Unpatched Flaw in Edge, Internet Explorer

Google Project Zero has disclosed a potentially serious vulnerability in Microsoft’s Edge and Internet Explorer web browsers before the tech giant could release patches.

Google Project Zero has disclosed a potentially serious vulnerability in Microsoft’s Edge and Internet Explorer web browsers before the tech giant could release patches.

The details of the flaw and proof-of-concept (PoC) code were made public last week by Google Project Zero researcher Ivan Fratric after Microsoft failed to meet the 90-day disclosure deadline.

The security hole, tracked as CVE-2017-0037, has been described as a high severity type confusion. The vulnerability can be exploited to cause the web browsers to crash, but arbitrary code execution could also be possible.

This is the second unpatched vulnerability in a Microsoft product disclosed by Google Project Zero this month. Earlier, Mateusz Jurczyk released the details of a medium severity information disclosure flaw tracked as CVE-2017-0038.

In addition, there is an unpatched denial-of-service (DoS) flaw in Windows caused by how SMB traffic is handled.

Microsoft only released patches for Adobe Flash Player this month after postponing its February 2017 updates to March 14 due to an unspecified “last minute issue.” It’s possible that the three vulnerabilities affecting Windows and the browsers were supposed to be fixed by the delayed security updates.

Microsoft claimed last month that the security mechanisms in Windows 10 can block the exploitation of zero-day vulnerabilities even before patches are made available. As an example the company provided two flaws exploited in sophisticated attacks against organizations in South Korea and the United States before fixes could be released.

Related: Google Discloses Windows Zero-Day Vulnerability

Related: Microsoft Patches Several Publicly Disclosed Flaws

Related: Google Discloses Windows Flaw That Microsoft Failed to Fix

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join this webinar to learn best practices that organizations can use to improve both their resilience to new threats and their response times to incidents.

Register

Join this live webinar as we explore the potential security threats that can arise when third parties are granted access to a sensitive data or systems.

Register

Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.

Vulnerabilities

Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...

Vulnerabilities

Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

IoT Security

Lexmark warns of a remote code execution (RCE) vulnerability impacting over 120 printer models, for which PoC code has been published.

Application Security

A CSRF vulnerability in the source control management (SCM) service Kudu could be exploited to achieve remote code execution in multiple Azure services.