---
title: "CVE-2022-28656\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-2022-28656?format=md
keywords: index, follow
---

# CVE-2022-28656

Publication date 17 May 2022

Last updated 18 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2022-28656?format=md#impact-score)

Toggle side navigation

## Description

is\_closing\_session() allows users to consume RAM in the Apport process

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| apport | 26.04 LTS resolute | Fixed 2.21.0-0ubuntu1 |
| 25.10 questing | Fixed 2.21.0-0ubuntu1 |
| 25.04 plucky | Fixed 2.21.0-0ubuntu1 |
| 24.10 oracular | Fixed 2.21.0-0ubuntu1 |
| 24.04 LTS noble | Fixed 2.21.0-0ubuntu1 |
| 23.10 mantic | Fixed 2.21.0-0ubuntu1 |
| 23.04 lunar | Fixed 2.21.0-0ubuntu1 |
| 22.10 kinetic | Fixed 2.21.0-0ubuntu1 |
| 22.04 LTS jammy | Fixed 2.20.11-0ubuntu82.1 |
| 21.10 impish | Fixed 2.20.11-0ubuntu71.2 |
| 20.04 LTS focal | Fixed 2.20.11-0ubuntu27.24 |
| 18.04 LTS bionic | Fixed 2.20.9-0ubuntu7.28 |
| 16.04 LTS xenial | Fixed 2.20.1-0ubuntu2.30+esm4  Ubuntu Pro |
| 14.04 LTS trusty | Vulnerable |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

### Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

[Get Ubuntu Pro](https://ubuntu.com/pro)
[30-day free trial](https://ubuntu.com/pro/free-trial)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28656)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-28656)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-28656)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-28656)

### Related Ubuntu Security Notices (USN)

+ [USN-5427-1](https://usn.ubuntu.com/USN-5427-1)
+ Apport vulnerabilities
+ 17 May 2022

+ [USN-6894-1](https://usn.ubuntu.com/USN-6894-1)
+ Apport vulnerabilities
+ 11 July 2024

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2022-28656>