CVE-2020-6556: Buffer Overflow

Published Aug 18, 2020
·
Updated

Heap buffer overflow in SwiftShader in Google Chrome prior to 84.0.4147.135 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected Software

7 affected componentsFixes available
debian/chromium
90.0.4430.212-1~deb10u1116.0.5845.180-1~deb11u1120.0.6099.129-1~deb11u1119.0.6045.199-1~deb12u1120.0.6099.129-1~deb12u1120.0.6099.129-1
Google Chrome<84.0.4147.135
84.0.4147.135
Google Chrome<84.0.4147.125
Debian Debian Linux=10.0
Fedoraproject Fedora=33
openSUSE Leap=15.1
openSUSE Leap=15.2

Event History

Aug 18, 2020
CVE Published
12:00 AM
Sep 21, 2020
CVE Published
via MITRE·07:06 PM
Data Sourced
via MITRE·07:06 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2020-6556?

CVE-2020-6556 is classified as a high severity vulnerability due to the potential for remote code execution via heap corruption.

2

How do I fix CVE-2020-6556?

To fix CVE-2020-6556, upgrade to Google Chrome version 84.0.4147.135 or later, or update your Debian or Fedora packages to the corresponding patched versions.

3

What versions of Google Chrome are affected by CVE-2020-6556?

Google Chrome versions prior to 84.0.4147.135 are affected by CVE-2020-6556.

4

Does CVE-2020-6556 affect Chromium on Debian systems?

Yes, CVE-2020-6556 impacts Chromium versions below 90.0.4430.212-1~deb10u1 on Debian systems.

5

What type of attack does CVE-2020-6556 facilitate?

CVE-2020-6556 potentially allows an attacker to perform remote code execution through a crafted HTML page that exploits heap corruption.

Company

Resources

Contact

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