CVE-2021-20305 Detail
Received
This vulnerability has been received by the NVD and has not been analyzed.
Description
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.
Severity
CVSS Version 3.x CVSS Version 2.0
CVSS 3.x Severity and Metrics:
CVSS 2.0 Severity and Metrics:
References to Advisories, Solutions, and Tools
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-327
Use of a Broken or Risky Cryptographic Algorithm
Red Hat, Inc.
Change History
0 change records found show changes
Quick Info
CVE Dictionary Entry:
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