gir1.2-javascriptcoregtk-4.0: The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER...
CVE-2020-13753 is fixed in 7 products on 1 platform, first by gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.18.04.1, released July 12, 2020. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gir1.2-javascriptcoregtk-4.0 · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| gir1.2-javascriptcoregtk-4.0 · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| gir1.2-webkit2-4.0 · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | gir1.2-webkit2-4.0 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| gir1.2-webkit2-4.0 · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | gir1.2-webkit2-4.0 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| libjavascriptcoregtk-4.0-18 · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | libjavascriptcoregtk-4.0-18 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| libjavascriptcoregtk-4.0-18 · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | libjavascriptcoregtk-4.0-18 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | libjavascriptcoregtk-4.0-bin 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| libjavascriptcoregtk-4.0-bin · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | libjavascriptcoregtk-4.0-bin 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| libwebkit2gtk-4.0-37 · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | libwebkit2gtk-4.0-37 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| libwebkit2gtk-4.0-37 · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | libwebkit2gtk-4.0-37 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| libwebkit2gtk-4.0-37-gtk2 · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | libwebkit2gtk-4.0-37-gtk2 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| libwebkit2gtk-4.0-37-gtk2 · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | libwebkit2gtk-4.0-37-gtk2 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
| webkit2gtk-driver · Ubuntu 18.04.6 LTS (bionic) | 2.28.3-0ubuntu0.18.04.1 | webkit2gtk-driver 2.28.3-0ubuntu0.18.04.1 | Jul 12, 2020 |
| webkit2gtk-driver · Ubuntu 20.04 LTS (focal) | 2.28.3-0ubuntu0.20.04.1 | webkit2gtk-driver 2.28.3-0ubuntu0.20.04.1 | Jul 12, 2020 |
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