CVE Vulnerabilities

CVE-2021-21772

Use After Free

Published: Mar 10, 2021 | Modified: Nov 21, 2024
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

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.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Lib3mf 3mf 2.0.0 (including) 2.0.0 (including)
Lib3mf Ubuntu esm-apps/focal *
Lib3mf Ubuntu focal *
Lib3mf Ubuntu groovy *
Lib3mf Ubuntu hirsute *
Lib3mf Ubuntu impish *
Lib3mf Ubuntu trusty *
Lib3mf Ubuntu upstream *

Potential Mitigations

References