CVE-2020-6420 Security feature bypass in Chrome

High 8.8 Published Updated

Remote attackers can bypass same-origin policy in Google Chrome via crafted HTML pages, potentially accessing restricted data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2020-6420?

CVE-2020-6420 is a high-severity vulnerability in Debian Debian Linux, published on 20 Mar 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Insufficient policy enforcement in media in Google Chrome prior to 80.0.3987.132 allowed a remote attacker to bypass same origin policy via a crafted HTML page.

Which versions are affected by CVE-2020-6420?

It affects 3 products.

Linux distribution packages (4)
chromium-browser Red Hat:rhel_extras:6All versions0:80.0.3987.132-1.el6_10
chromium-browser-debuginfo Red Hat:rhel_extras:6All versions0:80.0.3987.132-1.el6_10
chromium SUSE:Package Hub 12 SP3All versions80.0.3987.132-37.1
chromium openSUSE:Leap 15.1All versions80.0.3987.132-lp151.2.69.1

Products include Debian Debian Linux, Fedoraproject Fedora, Google Chrome.

How do I fix CVE-2020-6420?

Upgrade to a fixed version.

Is CVE-2020-6420 being exploited?

There is no known exploitation of CVE-2020-6420 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-6420, GHSA-r4jm-xf8w-3f3v, RHSA-2020:0779, UBUNTU-CVE-2020-6420, openSUSE-SU-2020:0322-1, openSUSE-SU-2020:0324-1.

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