CVE-2021-42762

libwebkit2gtk-4.0-37: BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandbo...

CVE-2021-42762 is fixed in 7 products on 1 platform, first by gir1.2-javascriptcoregtk-4.0 2.34.1-1ubuntu1, released October 20, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile

BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133.

Where it's fixed

ProductFixed inFixReleased
Linux
gir1.2-javascriptcoregtk-4.0 · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 gir1.2-javascriptcoregtk-4.0 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
gir1.2-javascriptcoregtk-4.0 · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 gir1.2-javascriptcoregtk-4.0 2.34.1-1ubuntu1 Oct 20, 2021
gir1.2-webkit2-4.0 · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 gir1.2-webkit2-4.0 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
gir1.2-webkit2-4.0 · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 gir1.2-webkit2-4.0 2.34.1-1ubuntu1 Oct 20, 2021
libjavascriptcoregtk-4.0-18 · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 libjavascriptcoregtk-4.0-18 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-18 · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 libjavascriptcoregtk-4.0-18 2.34.1-1ubuntu1 Oct 20, 2021
libjavascriptcoregtk-4.0-bin · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 libjavascriptcoregtk-4.0-bin 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
libjavascriptcoregtk-4.0-bin · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 libjavascriptcoregtk-4.0-bin 2.34.1-1ubuntu1 Oct 20, 2021
libwebkit2gtk-4.0-37 · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 libwebkit2gtk-4.0-37 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
libwebkit2gtk-4.0-37 · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 libwebkit2gtk-4.0-37 2.34.1-1ubuntu1 Oct 20, 2021
libwebkit2gtk-4.0-37-gtk2 · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 libwebkit2gtk-4.0-37-gtk2 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
webkit2gtk-driver · Ubuntu 20.04 LTS (focal) 2.34.1-0ubuntu0.20.04.1 webkit2gtk-driver 2.34.1-0ubuntu0.20.04.1 Dec 24, 2021
webkit2gtk-driver · Ubuntu 22.04.1 LTS (jammy) 2.34.1-1ubuntu1 webkit2gtk-driver 2.34.1-1ubuntu1 Oct 20, 2021

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.