Is CVE-2021-42762 actively exploited?

CVE-2021-42762 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-42762?

CVE-2021-42762 has a CVSS score of 5.3 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

How do I patch CVE-2021-42762?

Patch guidance is available from webkitgtk security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-42762.

CVE-2021-42762 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-42762?

7 products: webkitgtk webkitgtk, wpewebkit wpe webkit, fedoraproject fedora, fedoraproject fedora, fedoraproject fedora, and 2 more.

Description

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 Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low
Weaknesses: NVD-CWE-Other

Metadata

Primary Vendor: WEBKITGTK
Published: 10/20/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

webkitgtk : webkitgtkwpewebkit : wpe_webkitfedoraproject : fedorafedoraproject : fedorafedoraproject : fedoradebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD