module: golang.org/x/crypto
package: golang.org/x/crypto/ssh
versions:
  - fixed: v0.0.0-20170330155735-e4e2799dd7aa
description: |
  By default host key verification is disabled which allows for
  man-in-the-middle attacks against SSH clients if
  ClientConfig.HostKeyCallback is not set.
cves:
  - CVE-2017-3204
credit: Phil Pennock
symbols:
  - NewClientConn
links:
  pr: https://go-review.googlesource.com/38701
  commit: https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d96367750991
  context:
    - https://go.dev/issue/19767
    - https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/