CVE-2022-32140: CODESYS runtime system prone to denial of service due to buffer copy
First published: Fri Jun 24 2022(Updated: )
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CODESYS PLCWinNT | >=2.0<2.4.7.57 | |
| Codesys Runtime Toolkit | >=2.0<2.4.7.57 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-32140?
CVE-2022-32140 is a vulnerability in multiple CODESYS products that allows a low privileged remote attacker to cause a denial-of-service condition through a crafted request.
How does CVE-2022-32140 affect CODESYS?
CVE-2022-32140 affects CODESYS PLCWinNT and CODESYS Runtime Toolkit versions 2.0 up to 2.4.7.57.
Is user interaction required to exploit CVE-2022-32140?
No, user interaction is not required to exploit CVE-2022-32140.
What is the severity of CVE-2022-32140?
CVE-2022-32140 has a severity rating of 6.5 (medium).
How can CVE-2022-32140 be fixed?
To fix CVE-2022-32140, it is recommended to update CODESYS PLCWinNT and CODESYS Runtime Toolkit to versions beyond 2.4.7.57.
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