CVE-2020-11793

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-17 · updated 2026-06-17
Weakness: CWE-416

Description

A use-after-free issue exists in WebKitGTK before 2.28.1 and WPE WebKit before 2.28.1 via crafted web content that allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash).

Affected products

Canonical Ubuntu Linux: 18.04, 19.10
Fedoraproject Fedora: 30, 31, 32
openSUSE Leap: 15.1
Webkit: before 2.28.1 — fixed in 2.28.1
Wpewebkit Wpe Webkit: before 2.28.1 — fixed in 2.28.1

How to fix

Upgrade to a fixed version: Webkit 2.28.1; Wpewebkit Wpe Webkit 2.28.1. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3P4YISPE5QX4YD54GDRZIH2X5RCH3QGW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3MQTRC6ITFTVS5R5Z24PMJS6FXJKGRD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTKY2MWP6PB6TE3ZKOOMKX7HZUCQNYF6/
https://security.gentoo.org/glsa/202006-08
https://usn.ubuntu.com/4331-1/
https://webkitgtk.org/security/WSA-2020-0004.html
https://wpewebkit.org/security/WSA-2020-0004.html
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3P4YISPE5QX4YD54GDRZIH2X5RCH3QGW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3MQTRC6ITFTVS5R5Z24PMJS6FXJKGRD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTKY2MWP6PB6TE3ZKOOMKX7HZUCQNYF6/

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