---
title: "CVE-2022-23219\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-23219?format=md
keywords: index, follow
---

# CVE-2022-23219

Publication date 14 January 2022

Last updated 18 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2022-23219?format=md#impact-score)

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## Description

The deprecated compatibility function clnt\_create in the sunrpc module of
the GNU C Library (aka glibc) through 2.34 copies its hostname argument on
the stack without validating its length, which may result in a buffer
overflow, potentially resulting in a denial of service or (if an
application is not built with a stack protector enabled) arbitrary code
execution.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-23219?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| eglibc | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 25.04 plucky | Not in release |
| 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release |
| 23.10 mantic | Not in release |
| 23.04 lunar | Not in release |
| 22.10 kinetic | Not in release |
| 22.04 LTS jammy | Not in release |
| 21.10 impish | Not in release |
| 20.04 LTS focal | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Vulnerable |
| glibc | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Fixed 2.34-0ubuntu3.2 |
| 20.04 LTS focal | Fixed 2.31-0ubuntu9.7 |
| 18.04 LTS bionic | Fixed 2.27-3ubuntu1.5 |
| 16.04 LTS xenial | Fixed 2.23-0ubuntu11.3+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2022-23219?format=md#patch-details)

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## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

Ubuntu has stack protector enabled since 2006, so this issue is
only a denial of service.

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| glibc | * Upstream:   <https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=226b46770c82899b555986583294b049c6ec9b40> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23219)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-23219)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-23219)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-23219)

### Related Ubuntu Security Notices (USN)

+ [USN-5310-1](https://usn.ubuntu.com/USN-5310-1)
+ GNU C Library vulnerabilities
+ 1 March 2022

+ [USN-5310-2](https://usn.ubuntu.com/USN-5310-2)
+ GNU C Library vulnerabilities
+ 7 March 2022

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2022-23219>