CVE-2021-3580

moderate-risk

Published 2021-08-05

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.

Do I need to act?

0.10% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (5)

Nettle

Enterprise Linux

Debian Linux

Ontap Select Deploy Administration Utility

Affected Vendors

Debian Redhat Netapp Nettle Project

References (8)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1967983

Mailing List https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html

https://security.gentoo.org/glsa/202401-24

Third Party Advisory https://security.netapp.com/advisory/ntap-20211104-0006/

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1967983

Mailing List https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html

https://security.gentoo.org/glsa/202401-24

Third Party Advisory https://security.netapp.com/advisory/ntap-20211104-0006/

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 0/34 · Minimal

Exposure 12/34 · Low