CVE-2021-21772

Ubuntu Security Notice USN-6216-1

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A use-after-free vulnerability exists in the NMR::COpcPackageReader::releaseZIP() functionality of 3MF Consortium lib3mf 2.0.0. A specially crafted 3MF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Se presenta una vulnerabilidad de uso de la memoria previamente liberada en la funcionalidad NMR::COpcPackageReader::releaseZIP() de 3MF Consortium lib3mf versión 2.0.0. Un archivo 3MF especialmente diseñado puede conllevar a una ejecución de código. Un atacante puede proporcionar un archivo malicioso para activar esta vulnerabilidad

It was discovered that lib3mf did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted 3MF file, a local attacker could possibly use this issue to cause applications using lib3mf to crash, resulting in a denial of service, or possibly execute arbitrary code.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-04 CVE Reserved
2021-03-10 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-416: Use After Free

CAPEC

References (8)

URL	Tag	Source

URL	Date	SRC
https://github.com/3dluvr/New-lib3mf.dll-for-MeshMixer	2024-12-31
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1226	2024-08-03
https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1226	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHMMHD2EOMIVJ7EKZTJJMX4C7E6ZRWDL	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NPBS642OYVA6DUKK3HZHEINVWEDZSMEU	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDGGB65YBQL662M3MOBNNJJNRNURW4TG	2023-11-07
https://security.gentoo.org/glsa/202208-01	2023-11-07
https://www.debian.org/security/2021/dsa-4887	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
3mf Search vendor "3mf"		Lib3mf Search vendor "3mf" for product "Lib3mf"				2.0.0 Search vendor "3mf" for product "Lib3mf" and version "2.0.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected