<p>Upgrade <code>Ubuntu:20.04</code> <code>nettle</code> to version 3.5.1+really3.5.1-2ubuntu0.2 or higher.</p>

Improper Input Validation Affecting nettle package, versions <3.5.1+really3.5.1-2ubuntu0.2

Snyk CVSS

Attack Complexity Low

Availability High

Threat Intelligence

EPSS 0.66% (80^th percentile)

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Snyk ID SNYK-UBUNTU2004-NETTLE-1303240
published 14 Jun 2021
disclosed 5 Aug 2021

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Introduced: 14 Jun 2021

CVE-2021-3580 Open this link in a new tab CWE-20 Open this link in a new tab

How to fix?

Upgrade Ubuntu:20.04 nettle to version 3.5.1+really3.5.1-2ubuntu0.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nettle package and not the nettle package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.