VulnerabilityModified
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.
MEDIUM 5.9EPSS 3.28%
Does this matter?
Lower severity and a low EPSS score (3.28%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.28% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203, CWE-327
- Affected
- st/st33tphf2espi firmware · st/st33tphf2ei2c firmware · st/st33tphf20spi firmware · st/st33tphf20i2c firmware
- Source
- cve@mitre.org
References
- http://tpm.failThird Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024Third Party Advisory
- https://support.f5.com/csp/article/K32412503?utm_source=f5support&%3Butm_medium=RSS
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_usThird Party Advisory
- https://support.lenovo.com/us/en/product_security/LEN-29406Third Party Advisory
- https://www.st.com/content/st_com/en/campaigns/tpm-update.htmlVendor Advisory
- http://tpm.failThird Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024Third Party Advisory
- https://support.f5.com/csp/article/K32412503?utm_source=f5support&%3Butm_medium=RSS
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_usThird Party Advisory
- https://support.lenovo.com/us/en/product_security/LEN-29406Third Party Advisory
- https://www.st.com/content/st_com/en/campaigns/tpm-update.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.