Vulnerability CVE-2019-16863
Published: 2019-11-14

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.

Type:

CWE-327

 (Use of a Broken or Risky Cryptographic Algorithm)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None

 References:
http://tpm.fail
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024
https://support.f5.com/csp/article/K32412503?utm_source=f5support&utm_medium=RSS
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_us
https://support.lenovo.com/us/en/product_security/LEN-29406
https://www.st.com/content/st_com/en/campaigns/tpm-update.html
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