packages:
  - module: std
    package: net/smtp
    symbols:
      - plainAuth.Start
    versions:
      - introduced: go1.1
        fixed: go1.8.4
      - introduced: go1.1
        fixed: go1.9.1
description: |
    SMTP clients using net/smtp can use the PLAIN authentication scheme on
    network connections not secured with TLS, exposing passwords to
    man-in-the-middle SMTP servers.
published: 2022-01-07T20:35:00Z
cves:
  - CVE-2017-15042
credit: Stevie Johnstone
links:
    pr: https://go.dev/cl/68170
    commit: https://go.googlesource.com/go/+/ec3b6131de8f9c9c25283260c95c616c74f6d790
    context:
      - https://go.dev/issue/22134
      - https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ