CVE-2019-16863

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.

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.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

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.