---
title: "CVE-2018-3183\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-2018-3183?format=md
keywords: index, follow
---

# CVE-2018-3183

Publication date 16 October 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**9.0 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2018-3183?format=md#impact-score)

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## Description

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle
Java SE (subcomponent: Scripting). Supported versions that are affected are
Java SE: 8u182 and 11; Java SE Embedded: 8u181; JRockit: R28.3.19.
Difficult to exploit vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise Java SE, Java SE
Embedded, JRockit. While the vulnerability is in Java SE, Java SE Embedded,
JRockit, attacks may significantly impact additional products. Successful
attacks of this vulnerability can result in takeover of Java SE, Java SE
Embedded, JRockit. Note: This vulnerability applies to Java deployments,
typically in clients running sandboxed Java Web Start applications or
sandboxed Java applets (in Java SE 8), that load and run untrusted code
(e.g. code that comes from the internet) and rely on the Java sandbox for
security. This vulnerability can also be exploited by using APIs in the
specified Component, e.g. through a web service which supplies data to the
APIs. CVSS 3.0 Base Score 9.0 (Confidentiality, Integrity and Availability
impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

### From the Ubuntu Security Team

Krzysztof Szafrański discovered that the Scripting component
did not properly restrict access to the scripting engine in some
situations. An attacker could use this to specially construct an
untrusted Java application or applet that could escape sandbox
restrictions.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| openjdk-8 | 18.10 cosmic | Fixed 8u191-b12-0ubuntu0.18.10.1 |
| 18.04 LTS bionic | Fixed 8u191-b12-0ubuntu0.18.04.1 |
| 16.04 LTS xenial | Fixed 8u181-b13-1ubuntu0.16.04.1 |
| 14.04 LTS trusty | Not in release |
| openjdk-lts | 18.10 cosmic | Fixed 11.0.1+13-2ubuntu1 |
| 18.04 LTS bionic | Fixed 10.0.2+13-1ubuntu0.18.04.3 |
| 16.04 LTS xenial | Not in release |
| 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**

9.0 · Critical

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.0 · Critical |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3183)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-3183)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-3183)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-3183)

### Related Ubuntu Security Notices (USN)

+ [USN-3804-1](https://usn.ubuntu.com/USN-3804-1)
+ OpenJDK vulnerabilities
+ 30 October 2018

### Other references

* <http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html>
* <https://www.cve.org/CVERecord?id=CVE-2018-3183>