CVE-2017-3526 Denial of service in Java

Medium 5.9 Published 24 Apr 2017 Updated 7 Oct 2024

An unauthenticated attacker can cause a complete denial of service in Java SE by exploiting a vulnerability in the JAXP component.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2017-3526?

CVE-2017-3526 is a medium-severity denial of service vulnerability in Oracle Jdk, published on 24 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: JAXP). Supported versions that are affected are Java SE: 6u141, 7u131 and 8u121; Java SE Embedded: 8u121; JRockit: R28.3.13. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Java SE, Java SE Embedded, JRockit. 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 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

Which versions are affected by CVE-2017-3526?

It affects 3 products.

Products include Oracle Jdk, Oracle Jre, Oracle Jrockit.

How do I fix CVE-2017-3526?

Apply the vendor's patch.

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-2017-3526 being exploited?

There is no known exploitation of CVE-2017-3526 in the wild and no public exploit code.

All Oracle Jdk vulnerabilities

Sources

Also known as GHSA-m3j3-4h27-6j85, MINI-g4wr-g58x-7ccq, UBUNTU-CVE-2017-3526.