CVE-2019-2842 Denial of service in Java

What is CVE-2019-2842?

CVE-2019-2842 is a low-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Java SE component of Oracle Java SE (subcomponent: JCE). The supported version that is affected is Java SE: 8u212. 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 ability to cause a partial denial of service (partial DOS) of Java SE. 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 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Which versions are affected by CVE-2019-2842?

It affects 6 products.

Products include Canonical Ubuntu Linux, Hp Xp7 Command View, Mcafee Epolicy Orchestrator, Opensuse Leap, Oracle Jdk, Oracle Jre.

How do I fix CVE-2019-2842?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-2842 being exploited?

There is no known exploitation of CVE-2019-2842 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLEANSTART-2026-RN63648, GHSA-hp4x-r8hj-mqj6, MINI-mm9v-4cf6-7v9v, UBUNTU-CVE-2019-2842.