What’s Vulnerable › Vulnerabilities

CVE-2020-6576

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-21 · updated 2026-06-17
• Weakness: CWE-416

Description

Use after free in offscreen canvas in Google Chrome prior to 85.0.4183.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 31, 33
• Google Chrome: before 85.0.4183.102 — fixed in 85.0.4183.102
• openSUSE Backports Sle: 15.0-sp1, 15.0-sp2
• openSUSE Leap: 15.1, 15.2

How to fix

Upgrade to a fixed version: Google Chrome 85.0.4183.102. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00072.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00078.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00081.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html
• https://chromereleases.googleblog.com/2020/09/stable-channel-update-for-desktop.html
• https://crbug.com/1111737
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FN7HZIGAOCZKBT4LV363BCPRA5FLY25I/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNIYFJST4TFJYFZ27VODBOINCLBGULTD/
• https://security.gentoo.org/glsa/202101-30
• https://www.debian.org/security/2021/dsa-4824
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00072.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00078.html

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