CVE-2021-32944: Siemens JT2Go DGN File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Thu Jun 17 2021(Updated: )
A use-after-free issue exists in the DGN file-reading procedure in the Drawings SDK (All versions prior to 2022.4) resulting from the lack of proper validation of user-supplied data. This can result in a memory corruption or arbitrary code execution, allowing attackers to cause a denial-of-service condition or execute code in the context of the current process.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opendesign Drawings Sdk | <2022.4 | |
| Siemens COMOS | <10.4.1 | |
| Siemens JT2Go | <13.2.0.1 | |
| Siemens Teamcenter Visualization | <13.2.0.1 | |
| Siemens JT2Go | ||
| Open Design Alliance Drawings SDK | <2022.4 | 2022.4 |
| Open Design Alliance Drawing SDK: Version 2022.4 is affected by CVE-2021-32946 and CVE-2021-32952 | ||
| Siemens JT2Go | <13.2.0.1 | 13.2.0.1 |
| Siemens Teamcenter Visualization | <13.2.0.1 | 13.2.0.1 |
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Reference Links
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
- https://www.zerodayinitiative.com/advisories/ZDI-21-987/
- https://www.zerodayinitiative.com/advisories/ZDI-21-990/
- https://us-cert.cisa.gov/ics/advisories/icsa-21-222-01
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-159-02 (Advisory)
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-222-01 (Advisory)
Frequently Asked Questions
What is CVE-2021-32944?
CVE-2021-32944 is a vulnerability that allows remote attackers to execute arbitrary code on Siemens JT2Go.
How can the CVE-2021-32944 vulnerability be exploited?
The CVE-2021-32944 vulnerability can be exploited through user interaction, such as visiting a malicious page or opening a malicious file.
What software is affected by CVE-2021-32944?
Siemens JT2Go, Opendesign Drawings Sdk, Siemens COMOS, and Siemens Teamcenter Visualization are affected by CVE-2021-32944.
What is the severity of CVE-2021-32944?
CVE-2021-32944 has a severity rating of 7.8 (high).
Is there a fix available for CVE-2021-32944?
Yes, Siemens has released security advisories and patches to address the CVE-2021-32944 vulnerability.
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- vendor/opendesign
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- vendor/siemens
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- canonical/siemens jt2go
- canonical/siemens teamcenter visualization
- vendor/open design alliance
- canonical/open design alliance drawings sdk
- canonical/open design alliance drawing sdk: version 2022.4 is affected by cve-2021-32946 and cve-2021-32952