CVE-2021-42762

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.

Bugs

• <https://bugs.webkit.org/show_bug.cgi?id=231479&gt;

Notes