---
title: "CVE-2018-12545\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-2018-12545?format=md
keywords: index, follow
---

# CVE-2018-12545

Publication date 27 March 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2018-12545?format=md#impact-score)

Toggle side navigation

## Description

In Eclipse Jetty version 9.3.x and 9.4.x, the server is vulnerable to
Denial of Service conditions if a remote client sends either large SETTINGs
frames container containing many settings, or many small SETTINGs frames.
The vulnerability is due to the additional CPU and memory allocations
required to handle changed settings.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| jetty8 | 20.04 LTS focal | Not in release |
| 19.10 eoan | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |
| jetty9 | 20.04 LTS focal | Not affected |
| 19.10 eoan | Not affected |
| 19.04 disco | Not affected |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Not in release |
| 16.04 LTS xenial | Not affected |
| 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)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12545)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-12545)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-12545)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-12545)

### Other references

* <https://bugs.eclipse.org/bugs/show_bug.cgi?id=538096>
* <https://www.cve.org/CVERecord?id=CVE-2018-12545>