Vulnerability in St St33tphf20i2c
CVE-2019-16863
STMicroelectronics ST33TPHF2ESPI TPM devices before 2019-09-12 allow attackers to extract the ECDSA private key via a side-channel timing attack because ECDSA scalar multiplication is mishandled, aka TPM-FAIL.
EPSS: 0.033 (87.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- St St33tphf20i2c
- St St33tphf20i2c_firmware — versions 74.5, 74.9
- St St33tphf20spi
- St St33tphf20spi_firmware — versions 74.0, 74.4, 74.8
- St St33tphf2ei2c
- St St33tphf2ei2c_firmware — versions 73.5, 73.9
- St St33tphf2espi
- St St33tphf2espi_firmware — versions 71.0, 71.4, 71.12
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-16863?
- CVE-2019-16863 is a medium-severity vulnerability in St St33tphf20i2c, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2019-11-14.
- How severe is CVE-2019-16863?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-16863 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.