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Vulnerabilities / CVE-2020-13753

critical

CVE-2020-13753

webkitgtk: Improper access management to CLONE_NEWUSER and the TIOCSTI ioctl

Published Modified CWE 20
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Red Hat10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Ubuntu (medium).

Description

The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER and the TIOCSTI ioctl. CLONE_NEWUSER could potentially be used to confuse xdg-desktop-portal, which allows access outside the sandbox. TIOCSTI can be used to directly execute commands outside the sandbox by writing to the controlling terminal's input buffer, similar to CVE-2017-5226.

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.12webkit2gtk2.28.3-r0
alpine 3.13webkit2gtk2.28.3-r0
alpine 3.14webkit2gtk2.28.3-r0
alpine 3.15webkit2gtk2.28.3-r0
alpine 3.16webkit2gtk2.28.3-r0
alpine 3.17webkit2gtk2.28.3-r0
alpine 3.18webkit2gtk2.28.3-r0
alpine 3.19webkit2gtk2.28.3-r0
alpine 3.20webkit2gtk2.28.3-r0
debian 10webkit2gtk2.28.3-2~deb10u1
debian 11webkit2gtk, wpewebkit2.28.3-1
debian 12webkit2gtk, wpewebkit2.28.3-1
Show all 27 entries from 22 sources
SourcePackageFixed in
alpine 3.12webkit2gtk2.28.3-r0
alpine 3.13webkit2gtk2.28.3-r0
alpine 3.14webkit2gtk2.28.3-r0
alpine 3.15webkit2gtk2.28.3-r0
alpine 3.16webkit2gtk2.28.3-r0
alpine 3.17webkit2gtk2.28.3-r0
alpine 3.18webkit2gtk2.28.3-r0
alpine 3.19webkit2gtk2.28.3-r0
alpine 3.20webkit2gtk2.28.3-r0
debian 10webkit2gtk2.28.3-2~deb10u1
debian 11webkit2gtk2.28.3-1
debian 11wpewebkit2.28.3-1
debian 12webkit2gtk2.28.3-1
debian 12wpewebkit2.28.3-1
debian 13webkit2gtk2.28.3-1
debian 13wpewebkit2.28.3-1
debian 14webkit2gtk2.28.3-1
debian 14wpewebkit2.28.3-1
debian 8webkit2gtkno fix listed
debian 9webkit2gtkno fix listed
echowebkit2gtk2.28.3-1
echowpewebkit2.28.3-1
ubuntu 18.04webkit2gtk2.28.3-0ubuntu0.18.04.1
ubuntu 18.04-ESMwebkit2gtk2.28.3-0ubuntu0.18.04.1
ubuntu 19.10webkit2gtk2.28.3-0ubuntu0.19.10.1
ubuntu 20.04webkit2gtk2.28.3-0ubuntu0.20.04.1
ubuntu 20.04-ESMwebkit2gtk2.28.3-0ubuntu0.20.04.1

References

All 13 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.