CVE-2020-0878: Microsoft Browser Memory Corruption Vulnerability

Published Sep 11, 2020
·
Updated

<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment.</p> <p>The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.</p>

Other sources

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory, aka 'Microsoft Browser Memory Corruption Vulnerability'.

Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.

CISA

Affected Software

59 affected components
Microsoft Edge and Internet Explorer
Microsoft Internet Explorer=11
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10=1607
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Internet Explorer=9
Microsoft Edge
Microsoft ChakraCore
All of the following
Microsoft Internet Explorer=11
Any of the following
Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
All of the following
Microsoft Internet Explorer=9
Microsoft Windows Server 2008=sp2
All of the following
Microsoft Edge
Any of the following
Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows Server 2016
Microsoft Windows Server 2019

Event History

Sep 11, 2020
CVE Published
via MITRE·05:08 PM
Data Sourced
via MITRE·05:08 PM
DescriptionSeverity
Data Sourced
via NVD·05:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 3, 2021
Known Exploited
via CISA·12:00 AM
Known Ransomware
via CISA·12:00 AM
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Frequently Asked Questions

1

What is CVE-2020-0878?

CVE-2020-0878 is a remote code execution vulnerability in Microsoft browsers, including Microsoft Edge and Internet Explorer.

2

How does CVE-2020-0878 affect Microsoft Edge and Internet Explorer?

CVE-2020-0878 allows attackers to execute arbitrary code on a victim's system through memory corruption in Microsoft browsers.

3

What is the severity of CVE-2020-0878?

CVE-2020-0878 has a severity rating of 7.5, indicating a high severity vulnerability.

4

How can I fix CVE-2020-0878?

To fix CVE-2020-0878, it is recommended to apply the latest security updates provided by Microsoft for affected browsers.

5

Where can I find more information about CVE-2020-0878?

You can find more information about CVE-2020-0878 on the official Microsoft Security Guidance Advisory page: [CVE-2020-0878](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0878).

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