CVE-2018-18056
4.6 · MEDIUMOverview
CVE-2018-18056 is a medium-severity vulnerability affecting ti tm4c123_firmware. It was published on August 20, 2019 and has a CVSS 3.0 base score of 4.6 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in the Texas Instruments (TI) TM4C, MSP432E and MSP432P microcontroller series. The eXecute-Only-Memory (XOM) implementation prevents code read-outs on protected memory by generating bus faults. However, single-stepping and using breakpoints is allowed in XOM-protected flash memory. As a consequence, it is possible to execute single instructions with arbitrary system states (e.g., registers, status flags, and SRAM content) and observe the state changes produced by the unknown instruction. An attacker could exploit this vulnerability by executing protected and unknown instructions with specific system states and observing the state changes. Based on the gathered information, it is possible to reverse-engineer the executed instructions. The processor acts as a kind of "instruction oracle."
Remediation
Check the references section for vendor advisories and patches from ti. Update tm4c123_firmware to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2018-18056?
CVE-2018-18056 is a medium-severity vulnerability affecting ti tm4c123_firmware. It was published on August 20, 2019 and has a CVSS 3.0 base score of 4.6 (MEDIUM).
How severe is CVE-2018-18056?
This vulnerability has a CVSS 3.0 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-18056?
Check the references section for vendor advisories and patches from ti. Update tm4c123_firmware to the latest patched version. 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-2018-18056?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-18056 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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