Ubuntu update for WebKitGTK+

Published: 2020-03-31
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-10018
Exploitation vector Network
Public exploit N/A
Vulnerable software
webkit2gtk (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU26076

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10018

CWE-ID: CWE-416 - Use After Free

Exploit availability: No


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing web conftent. A remote attacker can trick a victim to visit a specially crafted web page, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Update the affected packages.

Ubuntu 19.10
libjavascriptcoregtk-4.0-18 - 2.28.0-0ubuntu0.19.10.2
libwebkit2gtk-4.0-37 - 2.28.0-0ubuntu0.19.10.2
Ubuntu 18.04 LTS
libjavascriptcoregtk-4.0-18 - 2.28.0-0ubuntu0.18.04.3
libwebkit2gtk-4.0-37 - 2.28.0-0ubuntu0.18.04.3

Vulnerable software versions

webkit2gtk (Ubuntu package): 2.20.2-0ubuntu0.18.04.1 - 2.26.4-0ubuntu0.19.10.1

External links


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.