CVE-2021-3580

nettle: Remote crash in RSA decryption via manipulated ciphertext

Published Aug 5, 2021 CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Description
A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2760-1 nettle security update
Debian DSA Debian DSA DSA-4933-1 nettle security update
Ubuntu USN Ubuntu USN USN-4990-1 Nettle vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 14, 2026, 9:49 AM
Reserved
Jun 4, 2021, 12:00 AM
Status
Modified
Published
Aug 5, 2021, 9:15 PM
Modified
Oct 14, 2026, 10:17 AM
Severity
Moderate
Public date
Jun 7, 2021, 12:00 AM