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Vulnerability of lib3mf: use after free via NMR-COpcPackageReader-releaseZIP

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via NMR::COpcPackageReader::releaseZIP() of lib3mf, in order to trigger a denial of service, and possibly to run code.
Vulnerable systems: Debian.
Severity of this threat: 2/4.
Creation date: 08/04/2021.
Références of this weakness: CVE-2021-21772, DSA-4887-1, TALOS-2020-1226, VIGILANCE-VUL-35036.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via NMR::COpcPackageReader::releaseZIP() of lib3mf, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity note impacts software or systems such as Debian.

Our Vigil@nce team determined that the severity of this computer weakness announce is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this cybersecurity vulnerability.

Solutions for this threat 

Debian 10: new lib3mf packages.
New packages are available:
  Debian 10: lib3mf 1.8.1+ds-3+deb10u1
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