PT-2019-4639 · Stmicroelectronics · St33Tphf2Espi

Berk Sunar + 3 · Published 2019-11-13 · Updated 2022-05-03 · CVE-2019-16863

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions STMicroelectronics ST33TPHF2ESPI TPM devices versions prior to 2019-09-12

Description The issue is related to a side-channel timing attack that allows attackers to extract the ECDSA private key due to mishandled ECDSA scalar multiplication. This vulnerability is associated with defects in the cryptographic algorithms used in the TPM processor's firmware. An attacker can exploit this issue to recover the value of closed keys stored in the Trusted Platform Module.

Recommendations For versions prior to 2019-09-12, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of a Broken Cryptographic Algorithm

Side Channel Attack

Weakness Enumeration

CWE-327

CWE-203

Related Identifiers

BDU:2020-00800

CVE-2019-16863

Affected Products

St33Tphf2Espi

References · 14

• https://nvd.nist.gov/vuln/detail/CVE-2019-16863 · Security Note
• https://st.com/content/st_com/en/campaigns/tpm-update.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00800 · Security Note
• https://osv.dev/vulnerability/CVE-2019-16863 · Vendor Advisory
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03972en_us · Note
• https://support.lenovo.com/us/en/product_security/LEN-29406 · Note
• https://t.me/opennews/5976 · Telegram Post
• http://tpm.fail · Note
• https://securitylab.ru/news/502531.php · Note
• https://t.me/tmfeed/72805 · Telegram Post
• https://support.f5.com/csp/article/K32412503?utm_source=f5support&amp%3Butm_medium=RSS · Note
• https://t.me/thehackernews/531 · Telegram Post
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190024 · Note
• https://t.me/tmfeed/72534 · Telegram Post