Vulnerability Description
In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an application crash or on some platforms even the execution of remote code. If your application is used in open networks or there are untrusted nodes in the network it is highly recommend to apply the patch. This was patched with commit 033ab5b. Users of version 1.4.x should upgrade to version 1.4.3 when available. As a workaround changes of commit 033ab5b can be applied to older versions.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mz-Automation | Libiec61850 | >= 1.4.0, < 1.4.3 |
Related Weaknesses (CWE)
References
- https://github.com/mz-automation/libiec61850/commit/033ab5b6488250c8c3b838f25a7cPatchThird Party Advisory
- https://github.com/mz-automation/libiec61850/issues/250Third Party Advisory
- https://github.com/mz-automation/libiec61850/security/advisories/GHSA-pq77-fmf7-Third Party Advisory
- https://github.com/mz-automation/libiec61850/commit/033ab5b6488250c8c3b838f25a7cPatchThird Party Advisory
- https://github.com/mz-automation/libiec61850/issues/250Third Party Advisory
- https://github.com/mz-automation/libiec61850/security/advisories/GHSA-pq77-fmf7-Third Party Advisory
FAQ
What is CVE-2020-15158?
CVE-2020-15158 is a vulnerability with a CVSS score of 7.7 (HIGH). In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an applic...
How severe is CVE-2020-15158?
CVE-2020-15158 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15158?
Check the references section above for vendor advisories and patch information. Affected products include: Mz-Automation Libiec61850.