Ubuntu update for lib3mf

1) Use-after-free

EUVDB-ID: #VU51410

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-21772

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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

Update the affected package lib3mf to the latest version.

Vulnerable software versions

Ubuntu: 20.04

lib3mf-dev (Ubuntu package): before 1.8.1+ds-3ubuntu0.2

lib3mf1 (Ubuntu package): before 1.8.1+ds-3ubuntu0.2

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:lib3mf-dev_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:lib3mf1_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-6216-1

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.