Use After Free in 3mf Lib3mf
CVE-2021-21772
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
- 3mf Lib3mf — versions 2.0.0
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 32, 33, 34
- 3mf — versions 3MF Consortium lib3mf 2.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talosintelligence.com/vulnerability_reports/TALOS-2020-1226 (Exploit, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2021/dsa-4887 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202208-01 (vendor-advisory, Third Party Advisory)
- www.talosintelligence.com/vulnerability_reports/TALOS-2021-1226 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21772?
- CVE-2021-21772 is a high-severity vulnerability in 3mf Lib3mf, classified under Use After Free. CVSS score: 8.1/10. Published 2021-03-10.
- How severe is CVE-2021-21772?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2021-21772 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.