An update for libtpms is now available for openEuler-22.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1837 Final 1.0 1.0 2025-07-18 Initial 2025-07-18 2025-07-18 openEuler SA Tool V1.0 2025-07-18 libtpms security update An update for libtpms is now available for openEuler-22.03-LTS-SP4 A library providing TPM functionality for VMs. Targeted for integration into Qemu. Security Fix(es): 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 vulnerability occurs in the ‘CryptHmacSign’ function with an inconsistent pairing of the signKey and signScheme parameters, where the signKey is ALG_KEYEDHASH key and inScheme is an ECC or RSA scheme. The reported vulnerability is in the ‘CryptHmacSign’ function, which is defined in the "Part 4: Supporting Routines – Code" document, section "7.151 - /tpm/src/crypt/CryptUtil.c ". This vulnerability can be triggered from user-mode applications by sending malicious commands to a TPM 2.0/vTPM (swtpm) whose firmware is based on an affected TCG reference implementation. The effect on libtpms is that it will cause an abort due to the detection of the out-of-bounds access, thus for example making a vTPM (swtpm) unavailable to a VM. This vulnerability is fixed in 0.7.12, 0.8.10, 0.9.7, and 0.10.1.(CVE-2025-49133) An update for libtpms is now available for openEuler-22.03-LTS-SP4. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium libtpms https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1837 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-49133 https://nvd.nist.gov/vuln/detail/CVE-2025-49133 openEuler-22.03-LTS-SP4 libtpms-0.7.3-10.oe2203sp4.x86_64.rpm libtpms-debuginfo-0.7.3-10.oe2203sp4.x86_64.rpm libtpms-debugsource-0.7.3-10.oe2203sp4.x86_64.rpm libtpms-devel-0.7.3-10.oe2203sp4.x86_64.rpm libtpms-0.7.3-10.oe2203sp4.aarch64.rpm libtpms-debuginfo-0.7.3-10.oe2203sp4.aarch64.rpm libtpms-debugsource-0.7.3-10.oe2203sp4.aarch64.rpm libtpms-devel-0.7.3-10.oe2203sp4.aarch64.rpm libtpms-0.7.3-10.oe2203sp4.src.rpm 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 vulnerability occurs in the ‘CryptHmacSign’ function with an inconsistent pairing of the signKey and signScheme parameters, where the signKey is ALG_KEYEDHASH key and inScheme is an ECC or RSA scheme. The reported vulnerability is in the ‘CryptHmacSign’ function, which is defined in the "Part 4: Supporting Routines – Code" document, section "7.151 - /tpm/src/crypt/CryptUtil.c ". This vulnerability can be triggered from user-mode applications by sending malicious commands to a TPM 2.0/vTPM (swtpm) whose firmware is based on an affected TCG reference implementation. The effect on libtpms is that it will cause an abort due to the detection of the out-of-bounds access, thus for example making a vTPM (swtpm) unavailable to a VM. This vulnerability is fixed in 0.7.12, 0.8.10, 0.9.7, and 0.10.1. 2025-07-18 CVE-2025-49133 openEuler-22.03-LTS-SP4 Medium 5.9 AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H libtpms security update 2025-07-18 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1837