CVE-2017-8477 Information disclosure in Microsoft Windows

Medium 5.0 Published Updated

An authenticated attacker can exploit improper memory initialization in the Windows kernel to disclose sensitive information.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-8477?

CVE-2017-8477 is a medium-severity vulnerability in Microsoft Windows 10, published on 15 Jun 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an authenticated attacker to run a specially crafted application when the Windows kernel improperly initializes objects in memory, aka "Win32k Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8470, CVE-2017-8471, CVE-2017-8472, CVE-2017-8473, CVE-2017-8475, and CVE-2017-8484.

Weakness: CWE-200

Which versions are affected by CVE-2017-8477?

It affects 7 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 1 more.

How do I fix CVE-2017-8477?

No fix has been published for CVE-2017-8477 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-8477 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-8477 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-g7q3-wx8p-7ph5.

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