Subject: [ASA-202107-9] libtpms: information disclosure Arch Linux Security Advisory ASA-202107-9 ========================================= Severity: Medium Date : 2021-07-01 CVE-ID : CVE-2021-3623 Package : libtpms Type : information disclosure Remote : No Link : https://security.archlinux.org/AVG-2108 Summary ======= The package libtpms before version 0.8.4-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 0.8.4-1. # pacman -Syu "libtpms>=0.8.4-1" The problem has been fixed upstream in version 0.8.4. Workaround ========== None. Description =========== A security issue was found in libtpms before version 0.8.4. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. Impact ====== An attacker could disclose sensitive information about the state of the TPM through crafted command packets. References ========== https://bugzilla.redhat.com/show_bug.cgi?id=1976806 https://github.com/stefanberger/libtpms/pull/223 https://github.com/stefanberger/libtpms/pull/225 https://github.com/stefanberger/libtpms/commit/f16250b35aff6995e540143a9858c9cf0d1f9573 https://github.com/stefanberger/libtpms/commit/3ef9b26cb9f28bd64d738bff9505a20d4eb56acd https://github.com/stefanberger/libtpms/commit/5cc98a62dc6f204dcf5b87c2ee83ac742a6a319b https://security.archlinux.org/CVE-2021-3623