CVEvulnerability

CVE-2021-41556

10.0 CRITICAL Published 2022-07-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-07-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-125

Description

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.

Affected configurations

• squirrel-lang squirrel (<= 2.2.5) • squirrel-lang squirrel (>= 3.0 <= 3.1) • fedoraproject fedora 35 • fedoraproject fedora 36

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References