Improper Resource Shutdown or Release Affecting std/syscall package, versions <1.16.12>=1.17.0-0 <1.17.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-STDSYSCALL-14552559
- published6 Jan 2026
- disclosed18 May 2022
- creditTomasz Maczukin, Kamil Trzciński
Introduced: 18 May 2022
CVE-2021-44717 (opens in a new tab)How to fix?
Upgrade std/syscall to version 1.16.12, 1.17.5 or higher.
Overview
std/syscall is a Go standard library package std/syscall
Affected versions of this package are vulnerable to Improper Resource Shutdown or Release.
Go Vulnerability Report:
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.