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{"bugzilla": {"description": "hw: ECDSA signature timing vulnerabilities in TPM module", "id": "1788755", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1788755"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-385", "details": ["Cryptographic timing conditions in the subsystem for Intel(R) PTT before versions 11.8.70, 11.11.70, 11.22.70, 12.0.45, 13.0.0 and 14.0.10; Intel(R) TXE 3.1.70 and 4.0.20; Intel(R) SPS before versions SPS_E5_04.01.04.305.0, SPS_SoC-X_04.00.04.108.0, SPS_SoC-A_04.00.04.191.0, SPS_E3_04.01.04.086.0, SPS_E3_04.08.04.047.0 may allow an unauthenticated user to potentially enable information disclosure via network access.", "Cryptographic timing vulnerabilities were discovered in certain versions of the Trusted Platform Module (TPM) firmware distributed by Intel and STMicroelectronics. Software that uses the TPM to compute ECDSA signatures could leak information through the timing of ECDSA signature operations, allowing an attacker to recover parts of the private key."], "mitigation": {"lang": "en:us", "value": "To remediate this vulnerability, install relevant firmware updates from your hardware vendor and follow their advice to regenerate keys that may be vulnerable or compromised. STMicroelectronics, Intel and OEMs have published firmware updates and advice at the links provided in the External References section."}, "name": "CVE-2019-11090", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-01-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-11090\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-11090\nhttps://tpm.fail/\nhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00241.html\nhttps://www.st.com/content/st_com/en/campaigns/tpm-update.html"], "statement": "This is a vulnerability in TPM firmware distributed by hardware vendors, not by Red Hat. Red Hat Enterprise Linux exposes the TPM device at /dev/tpm* where it is available for software with the correct privileges to use. Customers are advised to always ensure that firmware updates from hardware vendors are kept up to date with security fixes.", "threat_severity": "Moderate"}