DEBIAN-CVE-2021-41556

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Source

https://security-tracker.debian.org/tracker/CVE-2021-41556

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-41556.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-41556

Upstream

CVE-2021-41556

Published

2022-07-28T21:15:08Z

Modified

2026-09-01T20:04:33Z

Severity

10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script, it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous functionality such as File System functions has been disabled. An attacker might abuse this bug to target (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through video games that embed a Squirrel Engine.

References

https://security-tracker.debian.org/tracker/CVE-2021-41556

Affected packages

Debian:13 / squirrel3

Package

Name: squirrel3
Purl: pkg:deb/debian/squirrel3?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.1-8.2+deb13u1

Affected versions

3.*

3.1-8.2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-41556.json"

Debian:14 / squirrel3