CVE-2018-0797

Microsoft Office Memory Corruption Vulnerability

CVE-2018-0797 is fixed in 18 products on 1 platform, first by KB4011607, released January 9, 2018. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
n/a
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2466
97th percentile

<p>An Office RTF remote code execution vulnerability exists in Microsoft Office software when the Office software fails to properly handle RTF files. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.</p> <p>The security update addresses the vulnerability by changing the way Microsoft Office software handles RTF content.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Office 2010 Service Pack 2 (32-bit editions) KB4011658 Jan 10, 2018
Microsoft Office 2010 Service Pack 2 (64-bit editions) KB4011658 Jan 10, 2018
Microsoft Office Compatibility Pack Service Pack 3 KB4011607 Jan 9, 2018
Microsoft Office Online Server 2016 KB4011022 Jan 10, 2018
Microsoft Office Web Apps 2010 Service Pack 2 KB4011615 Jan 10, 2018
Microsoft Office Web Apps Server 2013 Service Pack 1 KB4011648 Jan 10, 2018
Microsoft Office Word Viewer KB4011641 Jan 10, 2018
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 KB4011579 Jan 10, 2018
Microsoft SharePoint Enterprise Server 2016 KB4011642 Jan 9, 2018
Microsoft SharePoint Server 2010 Service Pack 2 KB4011609 Jan 10, 2018
Microsoft Word 2007 Service Pack 3 KB4011657 Jan 9, 2018
Microsoft Word 2010 Service Pack 2 (32-bit editions) KB4011659 Jan 9, 2018
Microsoft Word 2010 Service Pack 2 (64-bit editions) KB4011659 Jan 9, 2018
Microsoft Word 2013 RT Service Pack 1 KB4011651 Jan 9, 2018
Microsoft Word 2013 Service Pack 1 (32-bit editions) KB4011651 Jan 9, 2018
Microsoft Word 2013 Service Pack 1 (64-bit editions) KB4011651 Jan 9, 2018
Microsoft Word 2016 (32-bit edition) KB4011643 Jan 9, 2018
Microsoft Word 2016 (64-bit edition) KB4011643 Jan 9, 2018