module: golang.org/x/crypto
package: golang.org/x/crypto/ssh
versions:
  - fixed: v0.0.0-20200220183623-bac4c82f6975
description: |
  An attacker can craft an ssh-ed25519 or sk-ssh-ed25519@openssh.com public
  key, such that the library will panic when trying to verify a signature
  with it. If verifying signatures using user supplied public keys, this
  may be used as a denial of service vector.
published: 2021-04-14T12:00:00Z
cve: CVE-2020-9283
credit: Alex Gaynor, Fish in a Barrel
symbols:
  - parseED25519
  - ed25519PublicKey.Verify
  - parseSKEd25519
  - skEd25519PublicKey.Verify
  - NewPublicKey
links:
  pr: https://go-review.googlesource.com/c/crypto/+/220357
  commit: https://github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88adab236
  context:
    - https://groups.google.com/g/golang-announce/c/3L45YRc91SY