--- title: "CVE-2018-3149\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-2018-3149?format=md keywords: index, follow --- # CVE-2018-3149 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 **8.3 · High** [Score breakdown](https://ubuntu.com/security/CVE-2018-3149?format=md#impact-score) Toggle side navigation ## Description Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: JNDI). Supported versions that are affected are Java SE: 6u201, 7u191, 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. Successful attacks require human interaction from a person other than the attacker and 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 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H). ### From the Ubuntu Security Team It was discovered that the Java Naming and Directory Interface (JNDI) implementation in OpenJDK did not properly enforce restrictions specified by system properties in some situations. An attacker could potentially use this to execute arbitrary code. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | openjdk-7 | 18.10 cosmic | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Fixed 7u181-2.6.14-0ubuntu0.3 | | 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** 8.3 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | High | | Privileges required | None | | User interaction | Required | | Scope | Changed | | Confidentiality impact | High | | Integrity impact | High | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 8.3 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3149) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-3149) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-3149) * [Debian](https://security-tracker.debian.org/tracker/CVE-2018-3149) ### Related Ubuntu Security Notices (USN) + [USN-3824-1](https://usn.ubuntu.com/USN-3824-1) + OpenJDK 7 vulnerabilities + 16 November 2018 + [USN-3804-1](https://usn.ubuntu.com/USN-3804-1) + OpenJDK vulnerabilities + 30 October 2018 ### Other references * *