CVE-2017-8528 Memory corruption in Uniscribe

High 8.8 Published Updated

Remote attackers can execute arbitrary code via memory corruption in Windows Uniscribe, affecting multiple Windows and Office versions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-8528?

CVE-2017-8528 is a high-severity memory corruption vulnerability in Microsoft Office, published on 15 Jun 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Uniscribe in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, Windows Server 2016, Microsoft Office 2007 SP3, and Microsoft Office 2010 SP2 allows a remote code execution vulnerability due to the way it handles objects in memory, aka "Windows Uniscribe Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0283.

Weakness: CWE-119

Which versions are affected by CVE-2017-8528?

It affects 6 products.

Products include Microsoft Office, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012.

How do I fix CVE-2017-8528?

No fix has been published for CVE-2017-8528 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-8528 being exploited?

There is no known exploitation of CVE-2017-8528 in the wild and no public exploit code.

All Microsoft Office vulnerabilities

Sources

Also known as GHSA-hcwp-pm4w-hqcf.

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