CVE-2021-41556 Common Vulnerabilities and Exposures

Upstream information

CVE-2021-41556 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v3 Scores
	National Vulnerability Database
Base Score	10
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality Impact	High
Integrity Impact	High
Availability Impact	High
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1201974 [IN_PROGRESS]

SUSE Security Advisories:

openSUSE-SU-2023:0080-1, published Thu Mar 23 22:42:46 2023

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub 15 SP4	`squirrel >= 3.0.7-bp154.3.3.1` `squirrel-devel >= 3.0.7-bp154.3.3.1` `squirrel-devel-static >= 3.0.7-bp154.3.3.1` `squirrel-doc >= 3.0.7-bp154.3.3.1` `squirrel-examples >= 3.0.7-bp154.3.3.1`	Patchnames: openSUSE-2023-80
openSUSE Leap 15.4	`squirrel >= 3.0.7-bp154.3.3.1` `squirrel-devel >= 3.0.7-bp154.3.3.1` `squirrel-devel-static >= 3.0.7-bp154.3.3.1` `squirrel-doc >= 3.0.7-bp154.3.3.1` `squirrel-examples >= 3.0.7-bp154.3.3.1`	Patchnames: openSUSE-2023-80
openSUSE Tumbleweed	`squirrel >= 3.2-1.1` `squirrel-devel >= 3.2-1.1` `squirrel-devel-static >= 3.2-1.1` `squirrel-doc >= 3.2-1.1` `squirrel-examples >= 3.2-1.1`	Patchnames: openSUSE Tumbleweed GA squirrel-3.2-1.1

SUSE Timeline for this CVE

CVE page created: Fri Jul 29 06:00:19 2022
CVE page last modified: Fri Mar 24 00:55:26 2023