packages:
  - module: std
    package: syscall
    symbols:
      - ForkExec
    versions:
      - fixed: 1.16.12
      - introduced: 1.17
        fixed: 1.17.5
description: |
    When a Go program running on a Unix system is out of file descriptors and
    calls syscall.ForkExec (including indirectly by using the os/exec package),
    syscall.ForkExec can close file descriptor 0 as it fails. If this happens
    (or can be provoked) repeatedly, it can result in misdirected I/O such as
    writing network traffic intended for one connection to a different
    connection, or content intended for one file to a different one.

    For users who cannot immediately update to the new release, the bug can be
    mitigated by raising the per-process file descriptor limit.
cves:
  - CVE-2021-44717
credit: Tomasz Maczukin and Kamil Trzciński of GitLab
links:
    pr: https://go.dev/cl/370576
    commit: https://go.googlesource.com/go/+/a76511f3a40ea69ee4f5cd86e735e1c8a84f0aa2
    context:
      - https://go.dev/issue/50057
      - https://groups.google.com/g/golang-announce/c/hcmEScgc00k
      - https://go.dev/cl/370577
      - https://go.dev/cl/370795