NetSight
IP …
high8.1

CVE-2021-20305

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 Cur…

Impact

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.

Affected products

VendorProductAffected versions
Nettle ProjectNettle
before 3.7.2
FedoraprojectFedora
Version 33
RedhatEnterprise Linux
Versions 7.0, 8.0
NetappActive Iq Unified Manager
All versions
NetappOntap Select Deploy Administration Utility
All versions
DebianDebian Linux
Versions 9.0, 10.0

Weakness classification

CWE-327CWE-787

References