modules:
  - module: std
    versions:
      - introduced: 1.1.0
        fixed: 1.8.4
      - introduced: 1.9.0
        fixed: 1.9.1
    packages:
      - package: net/smtp
        symbols:
          - plainAuth.Start
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
references:
  - fix: https://go.dev/cl/68170
  - fix: https://go.googlesource.com/go/+/ec3b6131de8f9c9c25283260c95c616c74f6d790
  - report: https://go.dev/issue/22134
  - web: https://groups.google.com/g/golang-dev/c/RinSE3EiJBI/m/kYL7zb07AgAJ