SB2020101339 - Multiple vulnerabilities in Microsoft Office Click-to-Run



SB2020101339 - Multiple vulnerabilities in Microsoft Office Click-to-Run

Published: October 13, 2020

Security Bulletin ID SB2020101339
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2020-16934)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the Microsoft Office Click-to-Run (C2R) AppVLP improperly handles certain files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Buffer overflow (CVE-ID: CVE-2020-16955)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the Microsoft Office Click-to-Run (C2R) AppVLP improperly handles certain files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


3) Buffer overflow (CVE-ID: CVE-2020-16928)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the Microsoft Office Click-to-Run (C2R) AppVLP improperly handles certain files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.