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CVE-2021-42762

Public on 2021-10-20
Modified on 2024-02-05
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.

Severity
Medium
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CVSS v3 Base Score
5.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core webkitgtk4 2023-06-07 23:52 ALAS2-2023-2088

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD CVSSv2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P
NVD CVSSv3 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

Red Hat: CVE-2021-42762 Mitre: CVE-2021-42762 FAQs regarding Amazon Linux ALAS/CVE Severity