Libtpms contains a possible out-of-bound access and abort due to HMAC signing issue

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CVE-2025-49133 Libtpms contains a possible out-of-bound access and abort due to HMAC signing issue

Libtpms is a library that targets the integration of TPM functionality into hypervisors, primarily into Qemu. Libtpms, which is derived from the TPM 2.0 reference implementation code published by the Trusted Computing Group, is prone to a potential out of bounds OOB read vulnerability. The...

CVE-2025-49133

The CVE-2025-49133 entry affects libtpms, a TPM functionality library for virtual machines, with a flaw in CryptHmacSign that pairs signKey (ALG_KEYEDHASH) with inScheme (ECC/RSA) leading to an out-of-bounds read. The issue can be triggered by sending malicious TPM 2.0 commands to a vTPM (swtpm) ...