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.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
Sign in to view the affected projects.
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2760-1 | nettle security update |
Debian DSA |
DSA-4933-1 | nettle security update |
EUVD |
EUVD-2021-7730 | 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. |
Ubuntu USN |
USN-4906-1 | Nettle vulnerability |
References
History
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
epss
|
Subscriptions
Debian
Subscribe
Debian Linux
Subscribe
Fedoraproject
Subscribe
Fedora
Subscribe
Netapp
Subscribe
Active Iq Unified Manager
Subscribe
Ontap Select Deploy Administration Utility
Subscribe
Nettle Project
Subscribe
Nettle
Subscribe
Redhat
Subscribe
Enterprise Linux
Subscribe
Rhel Aus
Subscribe
Rhel E4s
Subscribe
Rhel Eus
Subscribe
Rhel Tus
Subscribe
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:37:23.808Z
Reserved: 2020-12-17T00:00:00.000Z
Link: CVE-2021-20305
No data.
Status : Modified
Published: 2021-04-05T22:15:12.727
Modified: 2024-11-21T05:46:19.280
Link: CVE-2021-20305
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN