---
title: "CVE-2018-2972\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-2018-2972?format=md
keywords: index, follow
---

# CVE-2018-2972

Publication date 18 July 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.9 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2018-2972?format=md#impact-score)

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## Description

Vulnerability in the Java SE component of Oracle Java SE (subcomponent:
Security). The supported version that is affected is Java SE: 10.0.1.
Difficult to exploit vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise Java SE. Successful
attacks of this vulnerability can result in unauthorized access to critical
data or complete access to all Java SE accessible data. Note: Applies to
client and server deployment of Java. This vulnerability can be exploited
through sandboxed Java Web Start applications and sandboxed Java applets.
It can also be exploited by supplying data to APIs in the specified
Component without using sandboxed Java Web Start applications or sandboxed
Java applets, such as through a web service. CVSS 3.0 Base Score 5.9
(Confidentiality impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

### From the Ubuntu Security Team

Daniel Bleichenbacher discovered a vulnerability in the Galois/Counter
Mode (GCM) mode of operation for symmetric block ciphers in
OpenJDK. An attacker could use this to expose sensitive information.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| openjdk-lts | 18.04 LTS bionic | Fixed 10.0.2+13-1ubuntu0.18.04.1 |
| 17.10 artful | Not in release |
| 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**

5.9 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.9 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-2972)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-2972)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-2972)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-2972)

### Related Ubuntu Security Notices (USN)

+ [USN-3747-1](https://usn.ubuntu.com/USN-3747-1)
+ OpenJDK 10 vulnerabilities
+ 21 August 2018

### Other references

* <http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html#AppendixJAVA>
* <https://www.cve.org/CVERecord?id=CVE-2018-2972>