# CVE-2017-3526: Denial of service in Java

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

- **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 24 Apr 2017
- **Updated:** 7 Oct 2024
- **Also known as:** GHSA-m3j3-4h27-6j85, MINI-g4wr-g58x-7ccq, UBUNTU-CVE-2017-3526

## 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: Oracle Jdk, Oracle Jre, Oracle Jrockit.

## How do I fix CVE-2017-3526?

Apply the vendor's patch.

## Is CVE-2017-3526 being exploited?

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

## Other vulnerabilities in Oracle Jdk

- [CVE-2012-4681](https://insights.sbomify.com/CVE-2012-4681/): Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2012-1723](https://insights.sbomify.com/CVE-2012-1723/): Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2015-4805](https://insights.sbomify.com/CVE-2015-4805/): Deserialization in n/a (critical 10.0)
- [CVE-2015-4835](https://insights.sbomify.com/CVE-2015-4835/): Other in n/a (critical 10.0)
- [CVE-2015-4843](https://insights.sbomify.com/CVE-2015-4843/): Other in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3526 and fix it if it is affected.

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

Affected product: Oracle Jdk. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2017-3526/ (Markdown: https://insights.sbomify.com/CVE-2017-3526/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3526
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3526
- OSV: https://osv.dev/vulnerability/CVE-2017-3526

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-3526/
Summaries are generated and may contain mistakes; the official description above is the record.