CVE-2022-21159

Public Exploit

Description

A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0. A specially-crafted series of network requests can lead to denial of service. An attacker can send a sequence of malformed iec61850 messages to trigger this vulnerability.

References

Link	Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467	third party advisory exploit
https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721	third party advisory patch
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2022-21159?: CVE-2022-21159 has been scored as a high severity vulnerability.
How to fix CVE-2022-21159?: To fix CVE-2022-21159, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21159 being actively exploited in the wild?: It is possible that CVE-2022-21159 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21159?: CVE-2022-21159 affects MZ Automation GmbH libiec61850.

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Description

Category

CWE-835 – Loop with Unreachable Exit Condition ('Infinite Loop')

References

Frequently Asked Questions