Cryptographic issues in wolfSSL - CVE-2020-15309
Published: August 24, 2020
Vulnerability identifier: #VU45988
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-15309
CWE-ID: CWE-310
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists in wolfSSL when single precision is not employed. A local user can conduct a cache-timing attack against public key operations. These attackers may already have obtained sensitive information if the affected system has been used for private key operations (e.g., signing with a private key).
Affected software
wolfSSL
How to mitigate CVE-2020-15309
Install updates from vendor's website.
wolfSSL - update to 4.5.0