Fixed
Created: Apr 1, 2021
Updated: Jul 13, 2021
Resolved Date: May 23, 2021
Found In Version: 10.18.44.1
Fix Version: 10.18.44.23
Severity: Standard
Applicable for: Wind River Linux LTS 18
Component/s: Userspace
A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
https://nvd.nist.gov/vuln/detail/CVE-2021-20305
