CVE-2020-13753

CRITICAL
10
CVSS Score
Published: July 14, 2020 at 01:07 PM UTC
Updated: June 17, 2026 at 02:53 AM UTC
6 products affected across 6 vendorsDebian LinuxFedoraUbuntu Linux

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
CRITICAL10
Exploit prediction
EPSS 3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.28.3
Affected range stops below 2.28.3, so it looks safe — our inference, not a vendor statement
v < 2.28.3
Affected range stops below 2.28.3, so it looks safe — our inference, not a vendor statement

References (7)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00074.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202007-11
x_refsource_MISCPatchVendor Advisory
https://trac.webkit.org/changeset/262368/webkit
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4422-1/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2020/dsa-4724
x_refsource_CONFIRMMailing ListThird Party Advisory
https://www.openwall.com/lists/oss-security/2020/07/10/1

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card