modules:
  - module: std
    versions:
      - fixed: 1.16.12
      - introduced: 1.17.0
        fixed: 1.17.5
    vulnerable_at: 1.17.4
    packages:
      - package: syscall
        symbols:
          - ForkExec
        skip_fix: 'TODO: revisit this reason (fix appears to not work with Go <1.18)'
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.
published: 2022-05-18T18:23:23Z
cves:
  - CVE-2021-44717
credit: Tomasz Maczukin and Kamil Trzciński of GitLab
references:
  - fix: https://go.dev/cl/370576
  - fix: https://go.googlesource.com/go/+/a76511f3a40ea69ee4f5cd86e735e1c8a84f0aa2
  - report: https://go.dev/issue/50057
  - web: https://groups.google.com/g/golang-announce/c/hcmEScgc00k
  - fix: https://go.dev/cl/370577
  - fix: https://go.dev/cl/370795