CVE-2021-3580

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.

Score

CVSS 3.1 7.5 High

Status

Modified - secalert@redhat.com

Published

2021-08-05

Last modified

2026-10-14

Weaknesses

CWE-20

Affected products

• Debian Linux (Debian)
• Ontap Select Deploy Administration Utility (Netapp)
• Nettle (Nettle Project)
• Enterprise Linux (Redhat)
• Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
• Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
• Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1967983
• https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html
• https://security.netapp.com/advisory/ntap-20211104-0006/
• https://security.gentoo.org/glsa/202401-24
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html