Information disclosure in wolfSSL - CVE-2020-11735
Published: August 24, 2020
Vulnerability identifier: #VU45990
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-11735
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker to gain access to potentially sensitive information.
The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective coordinates leak."
Affected software
wolfSSL
How to mitigate CVE-2020-11735
Install updates from vendor's website.
wolfSSL - update to 4.4.0