CVE-2021-42762 Affecting libjavascriptcoregtk-4_0-18 package, versions <2.34.1-3.87.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-SLES150-LIBJAVASCRIPTCOREGTK4018-2654261
  • published14 Apr 2022
  • disclosed23 Nov 2021

Introduced: 23 Nov 2021

CVE-2021-42762  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 libjavascriptcoregtk-4_0-18 to version 2.34.1-3.87.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libjavascriptcoregtk-4_0-18 package and not the libjavascriptcoregtk-4_0-18 package as distributed by SLES. See How to fix? for SLES:15.0 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.

CVSS Scores

version 3.1