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Ubuntu: (Multiple Advisories) (CVE-2020-13753): WebKitGTK+ vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-13753): WebKitGTK+ vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
07/14/2020
Created
08/07/2020
Added
08/05/2020
Modified
03/22/2023

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.

Solution(s)

  • ubuntu-upgrade-libjavascriptcoregtk-4-0-18
  • ubuntu-upgrade-libwebkit2gtk-4-0-37

References

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