CVE-2017-0020 Memory corruption in Office

What is CVE-2017-0020?

CVE-2017-0020 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 17 Mar 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 Excel 2016, Excel 2010 SP2, Excel 2013 RT SP1, and Office Web Apps Server 2013 SP1 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability." This vulnerability is different from those described in CVE-2017-0006, CVE-2017-0019, CVE-2017-0030, CVE-2017-0031, CVE-2017-0052, and CVE-2017-0053.

Weakness: CWE-119

Which versions are affected by CVE-2017-0020?

It affects 2 products.

Products include Microsoft Excel, Microsoft Office Web Apps.

How do I fix CVE-2017-0020?

No fix has been published for CVE-2017-0020 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-2017-0020 being exploited?

There is no known exploitation of CVE-2017-0020 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Excel

• CVE-2019-1297 Microsoft Excel Remote Code Execution Exploited High 8.8
• CVE-2009-0238 Microsoft Office Remote Code Execution Exploited High 8.8
• CVE-2016-7262 Microsoft Office Security Feature Bypass Exploited High 7.8
• CVE-2009-3129 Microsoft Excel Featheader Record Memory Corruption Exploited High 7.8
• CVE-2008-0081 Code injection in n/a Critical 9.8

All Microsoft Excel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6xcm-w7gm-j675.