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A pair of serious security defects has been disclosed in the Trusted Platform Module (TPM) 2.0 reference library specification that could potentially lead to information disclosure or privilege escalation.

One of the vulnerabilities, CVE-2023-1017, concerns an out-of-bounds write, while the other, CVE-2023-1018, is described as an out-of-bounds read. Credited with discovering and reporting the issues in November 2022 is cybersecurity company Quarkslab.

“These vulnerabilities can be triggered from user-mode applications by sending malicious commands to a TPM 2.0 whose firmware is based on an affected TCG reference implementation,” the Trusted Computing Group (TCG) said in an advisory.

Large tech vendors, organizations using enterprise computers, servers, IoT devices, and embedded systems that include a TPM can be impacted by the flaws, Quarkslab noted, adding they “could affect billions of devices.”

TPM is a hardware-based solution (i.e., a crypto-processor) that’s designed to provide secure cryptographic functions and physical security mechanisms to resist tampering efforts.

images from Hacker News