CVE-2021-32950: Siemens JT2Go DXF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Thu Jun 17 2021(Updated: )
An out-of-bounds read issue exists within the parsing of DXF files 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 read past the end of an allocated buffer and allows attackers to cause a denial-of-service condition or read sensitive information from memory locations.
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-21-988/
- 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-2021-32950?
CVE-2021-32950 is a vulnerability in Siemens JT2Go that allows remote attackers to disclose sensitive information.
How does CVE-2021-32950 work?
CVE-2021-32950 works by exploiting a flaw in the parsing of DXF files, which can lead to an out-of-bounds read vulnerability.
What is the severity of CVE-2021-32950?
The severity of CVE-2021-32950 is high, with a CVSS score of 7.1.
Which software is affected by CVE-2021-32950?
Siemens JT2Go, Opendesign Drawings SDK, Siemens COMOS, and Siemens Teamcenter Visualization are affected by CVE-2021-32950.
How can CVE-2021-32950 be mitigated?
To mitigate CVE-2021-32950, users should update to the latest version of the affected software and exercise caution when opening files or visiting websites.
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- 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