SB2020021018 - Fedora 31 update for mbedtls
Published: February 10, 2020 Updated: April 25, 2025
Security Bulletin ID
SB2020021018
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2019-18222)
The vulnerability allows an attacker to gain access to sensitive information.
the vulnerability exists due to the ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.
Remediation
Install update from vendor's website.