--- title: "CVE-2019-2816\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-2019-2816?format=md keywords: index, follow --- # CVE-2019-2816 Publication date 23 July 2019 Last updated 25 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **4.8 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2019-2816?format=md#impact-score) Toggle side navigation ## Description Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: Networking). Supported versions that are affected are Java SE: 7u221, 8u212, 11.0.3 and 12.0.1; Java SE Embedded: 8u211. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data as well as unauthorized read access to a subset of Java SE, Java SE Embedded accessible data. 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 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N). ### From the Ubuntu Security Team Jonathan Birch discovered that the Networking component of OpenJDK did not properly validate URLs in some situations. An attacker could use this to bypass restrictions on characters in URLs. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | openjdk-12 | 19.10 eoan | Not in release | | 19.04 disco | Ignored end of life | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | openjdk-7 | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | openjdk-8 | 19.10 eoan | Not affected | | 19.04 disco | Fixed 8u222-b10-1ubuntu1~19.04.1 | | 18.04 LTS bionic | Fixed 8u222-b10-1ubuntu1~18.04.1 | | 16.04 LTS xenial | Fixed 8u222-b10-1ubuntu1~16.04.1 | | 14.04 LTS trusty | Not in release | | openjdk-lts | 19.10 eoan | Not affected | | 19.04 disco | Fixed 11.0.4+11-1ubuntu2~19.04 | | 18.04 LTS bionic | Fixed 11.0.4+11-1ubuntu2~18.04.3 | | 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) * [Patch details](https://ubuntu.com/security/CVE-2019-2816?format=md#patch-details) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | openjdk-lts | * Upstream: | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 4.8 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | High | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | Low | | Integrity impact | Low | | Availability impact | None | * Scores | Parameter | Value | | --- | --- | | Base score | 4.8 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-2816) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-2816) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-2816) * [Debian](https://security-tracker.debian.org/tracker/CVE-2019-2816) ### Related Ubuntu Security Notices (USN) + [USN-4080-1](https://usn.ubuntu.com/USN-4080-1) + OpenJDK 8 vulnerabilities + 31 July 2019 + [USN-4083-1](https://usn.ubuntu.com/USN-4083-1) + OpenJDK 11 vulnerabilities + 31 July 2019 ### Other references * * *