Findings

CVE-2021-3580

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext.

Published Aug 5, 2021 · updated Oct 14, 2026 · nettle project nettle

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.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 5, 2021 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe debian/debian linux9.0
  • cpe netapp/ontap select deploy administration utilityversion unspecified
  • cpe nettle project/nettleversion unspecified
  • cpe redhat/enterprise linux7.0
  • cpe redhat/enterprise linux8.0

Sources

  • CVE.orgCVE-2021-3580

    Official CVE identifier

    cve.org
  • NIST NVDCVE-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.

    nvd.nist.gov

References

CVE-2021-3580 · ZeroDay Findings