CVE-2020-6422

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-23 · updated 2026-06-17
Weakness: CWE-787

Description

Use after free in WebGL in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

Debian Linux: 9.0, 10.0
Fedoraproject Fedora: 30, 31, 32
Google Chrome: before 80.0.3987.149 — fixed in 80.0.3987.149
openSUSE Backports Sle: 15.0-sp1
Suse Linux Enterprise Desktop: 12
SUSE Linux Enterprise: 12

How to fix

Upgrade to a fixed version: Google Chrome 80.0.3987.149. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html
https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html
https://crbug.com/1051748
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ/
https://security.gentoo.org/glsa/202003-53
https://www.debian.org/security/2020/dsa-4645
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html
https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html

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