CVE-2020-6463 Use after free in Chrome

What is CVE-2020-6463?

CVE-2020-6463 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 21 May 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

Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Weakness: CWE-787, CWE-416

Which versions are affected by CVE-2020-6463?

It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Google Chrome, Opensuse Backports Sle, Opensuse Leap.

How do I fix CVE-2020-6463?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-6463 being exploited?

There is no known exploitation of CVE-2020-6463 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-6463, GHSA-vmqg-547g-3f2r, UBUNTU-CVE-2020-6463.