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CVE-2018-10238

9.8 · CRITICAL

bvlc.c in skarg BACnet Protocol Stack bacserv 0.9.1 and 0.8.5 is affected by a Buffer Overflow because of a lack of packet-size validation.

Published Apr 20, 2018CWE-119EPSS 1.61%

Overview

CVE-2018-10238 is a critical-severity vulnerability. It was published on April 20, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

bvlc.c in skarg BACnet Protocol Stack bacserv 0.9.1 and 0.8.5 is affected by a Buffer Overflow because of a lack of packet-size validation. The affected component is bacserv BACnet/IP BVLC forwarded NPDU. The function bvlc_bdt_forward_npdu() calls bvlc_encode_forwarded_npdu() which copies the content from the request into a local in the bvlc_bdt_forward_npdu() stack frame and clobbers the canary. The attack vector is: A BACnet/IP device with BBMD enabled based on this library connected to IP network. The fixed version is: 0.8.6.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsourceforge.net/p/bacnet/bugs/55/Refsourceforge.net/p/bacnet/code/3168/Refsourceforge.net/p/bacnet/code/3169/Refsourceforge.net/p/bacnet/bugs/55/Refsourceforge.net/p/bacnet/code/3168/Refsourceforge.net/p/bacnet/code/3169/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-10238?

CVE-2018-10238 is a critical-severity vulnerability. It was published on April 20, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2018-10238?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-10238?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-10238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-10238 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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