CVE-2022-21159 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mz-Automation	Libiec61850	1.5.0

Related Weaknesses (CWE)

CWE-835

References

https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ePatchThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467ExploitThird Party Advisory
https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ePatchThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467ExploitThird Party Advisory

FAQ

What is CVE-2022-21159?

CVE-2022-21159 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 se...

How severe is CVE-2022-21159?

CVE-2022-21159 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-21159?

Check the references section above for vendor advisories and patch information. Affected products include: Mz-Automation Libiec61850.