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CVE-2021-20305

גבוהה 8.1

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
8.1 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — סבירות ניצול
2% (אחוזון 100) נכון ל-14/10/2026
CWE
CWE-327, CWE-787

מוצרים מושפעים

nettle_project: nettle; fedoraproject: fedora; redhat: enterprise linux; netapp: active iq unified manager; netapp: ontap select deploy administration utility; debian: debian linux

קישורים