CVE-2021-20305
05.04.2021, 22:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| nettle_project | nettle | 𝑥 < 3.7.2 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| netapp | active_iq_unified_manager | - |
| netapp | ontap_select_deploy_administration_utility | - |
| debian | debian_linux | 9.0 |
| debian | debian_linux | 10.0 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nettle |
|
Common Weakness Enumeration
- CWE-327 - Use of a Broken or Risky Cryptographic AlgorithmThe use of a broken or risky cryptographic algorithm is an unnecessary risk that may result in the exposure of sensitive information.
- CWE-787 - Out-of-bounds WriteThe software writes data past the end, or before the beginning, of the intended buffer.
References