MGASA-2024-0170

A flaw was found in the tpm2-tools package. This issue occurs due to a missing check whether the magic number in attest is equal to TPM2GENERATEDVALUE, which can allow an attacker to generate arbitrary quote data that may not be detected by tpm2checkquote (CVE-2024-29038). The pcr selection which is passed with the --pcr parameter is not compared with the attest. So it is possible to fake a valid attestation (CVE-2024-29039). A vulnerability classified as problematic was found in tpm2-tools. This vulnerability affects an unknown code of the file tools/misc/tpm2checkquote.c of the component pcr Selection Value Handler. The manipulation with an unknown input leads to a comparison vulnerability. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.