---
title: "CVE-2022-23307\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-2022-23307?format=md
keywords: index, follow
---

# CVE-2022-23307

Publication date 18 January 2022

Last updated 24 June 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2022-23307?format=md#impact-score)

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## Description

CVE-2020-9493 identified a deserialization issue that was present in Apache
Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a component of Apache Log4j
1.2.x where the same issue exists.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| apache-log4j1.2 | 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Ignored end of life, was needs-triage |
| 23.04 lunar | Ignored end of life, was needs-triage |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Ignored end of life |
| 20.04 LTS focal | Fixed 1.2.17-9ubuntu0.2 |
| 18.04 LTS bionic | Fixed 1.2.17-8+deb10u1ubuntu0.2 |
| 16.04 LTS xenial | Fixed 1.2.17-7ubuntu1+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 1.2.17-4ubuntu3+esm2  Ubuntu Pro |

---

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

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23307)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-23307)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-23307)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-23307)

### Related Ubuntu Security Notices (USN)

+ [USN-5998-1](https://usn.ubuntu.com/USN-5998-1)
+ Apache Log4j vulnerabilities
+ 5 April 2023

+ [USN-7590-1](https://usn.ubuntu.com/USN-7590-1)
+ Apache Log4j vulnerabilities
+ 23 June 2025

### Other references

* <https://www.openwall.com/lists/oss-security/2022/01/18/5>
* <https://lists.apache.org/thread/rg4yyc89vs3dw6kpy3r92xop9loywyhh>
* <https://logging.apache.org/log4j/1.2/index.html>
* <https://www.cve.org/CVERecord?id=CVE-2022-23307>