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CVE-2021-42762 Affecting wpewebkit package, versions <2.34.1-1~deb11u1

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.05% (20th percentile)
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NVD
5.3 medium
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SUSE
8.8 high
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Red Hat
5.3 medium

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  • Snyk ID SNYK-DEBIAN11-WPEWEBKIT-1766281
  • published 22 Oct 2021
  • disclosed 20 Oct 2021
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Introduced: 20 Oct 2021

CVE-2021-42762 Open this link in a new tab

How to fix?

Upgrade Debian:11 wpewebkit to version 2.34.1-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wpewebkit package and not the wpewebkit package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

References