Vulnerability identifier: #VU51410

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21772

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
lib3mf
Other software / Other software solutions

Vendor: 3MF Consortium

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the NMR::COpcPackageReader::releaseZIP() functionality. A remote attacker can use a specially crafted 3MF file and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

lib3mf: 2.0.0

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2020-1226
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1226

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.