CVE Vulnerabilities

CVE-2021-34585

Unchecked Return Value

Published: Oct 26, 2021 | Modified: Nov 23, 2021
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

Affected Software

Name Vendor Start Version End Version
Codesys Codesys * 1.1.9.22 (excluding)

Potential Mitigations

References