CVE-2021-34585: CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)
First published: Tue Oct 26 2021(Updated: )
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Codesys Codesys | <1.1.9.22 |
Remedy
CODESYS GmbH has released version V1.1.9.22 of the CODESYS V2 web server to solve the noted vulnerability issues. This version of the CODESYS V2 web server is also part of the CODESYS Development System setup version V2.3.9.68.
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Reference Links
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- canonical/codesys codesys