An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel.

The Microsoft Office Viewer / Office Compatibility Products are missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - A remote code execution vulnerability exists in     Microsoft Excel software when the software fails to     properly handle objects in memory. 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.  (CVE-2018-8375)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2018-8382)

  - An information disclosure vulnerability exists when     Microsoft Office software reads out of bound memory due     to an uninitialized variable, which could disclose the     contents of memory. An attacker who successfully     exploited the vulnerability could view out of bound     memory. Exploitation of the vulnerability requires that     a user open a specially crafted file with an affected     version of Microsoft Office software. The security     update addresses the vulnerability by properly     initializing the affected variable. (CVE-2018-8378)

The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2018-8382)

  - A remote code execution vulnerability exists in     Microsoft Excel software when the software fails to     properly handle objects in memory. 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.  (CVE-2018-8375, CVE-2018-8379)

The Microsoft Office 2016 application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by the following vulnerabilities:

  - An elevation of privilege vulnerability exists when the     Microsoft AutoUpdate (MAU) application for Mac improperly     validates updates before executing them. An attacker who     successfully exploited the vulnerability who already has     the ability to execute code on a system could elevate     privileges. (CVE-2018-8412)

  - A remote code execution vulnerability exists in Microsoft     Excel software when the software fails to properly handle     objects in memory. 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. (CVE-2018-8375)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability could     use the information to compromise the user's computer or     data. (CVE-2018-8382)

ID	Name	Product	Family	Severity
111698	Security Updates for Microsoft Office Viewer Products / Office Compatibility Products (August 2018)	Nessus	Windows : Microsoft Bulletins	high
111694	Security Updates for Microsoft Excel Products (August 2018)	Nessus	Windows : Microsoft Bulletins	high
111682	Security Update for Microsoft Office (Auguest 2018) (macOS)	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2018-8382

medium

Tenable Plugins

high

high

high