CVE-2020-13753
webkit2gtk - security update
10.0
CRITICAL
CVSS 3.1
EPSS 2.2%
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.
How to fix CVE-2020-13753
To remediate CVE-2020-13753, upgrade the affected package to a fixed version below.
- —upgrade to 2.28.3-1 or later
- —upgrade to 2.28.3-2~deb10u1 or later
- —upgrade to 2.28.3-1 or later
Is CVE-2020-13753 being exploited?
Low — EPSS is 2.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.28.3-1
- from 0, < 2.28.3-2~deb10u1
- from 0, < 2.28.3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |