# CVE-2016-6346: Denial of service in JBoss resteasy

> Remote attackers can cause a denial of service in RESTEasy applications by exploiting the GZIPInterceptor feature.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/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:** 7 Sep 2016
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2016-6346, GHSA-wxvr-vqfp-9cqw, UBUNTU-CVE-2016-6346

## What is CVE-2016-6346?

CVE-2016-6346 is a high-severity denial of service vulnerability in n/a, published on 7 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

RESTEasy enables GZIPInterceptor, which allows remote attackers to cause a denial of service via unspecified vectors.

## Which versions are affected by CVE-2016-6346?

2 open source packages ship an affected version, including org.jboss.resteasy:resteasy-jaxrs. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jboss.resteasy:resteasy-jaxrs` | Maven | All versions | 3.0.20.Final |
| `org.jboss.resteasy:resteasy-jaxrs` | Maven | All versions | 3.0.20.Final |

Products: Redhat Resteasy.

## How do I fix CVE-2016-6346?

Upgrade org.jboss.resteasy:resteasy-jaxrs to 3.0.20.Final or later.

## Is CVE-2016-6346 being exploited?

There is no known exploitation of CVE-2016-6346 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-9606](https://insights.sbomify.com/CVE-2016-9606/): JBoss RESTEasy vulnerable to Improper Input Validation (high 8.1)
- [CVE-2018-1051](https://insights.sbomify.com/CVE-2018-1051/): Deserialization of Untrusted Data in org.jboss.resteasy:resteasy-yaml-provider (high 8.1)
- [CVE-2016-6345](https://insights.sbomify.com/CVE-2016-6345/): Exposure of Sensitive Information to an Unauthorized Actor in RESTEasy (medium 6.5)
- [CVE-2014-7839](https://insights.sbomify.com/CVE-2014-7839/): XML External Entity Reference in RESTEasy (medium 6.4)
- [CVE-2016-6347](https://insights.sbomify.com/CVE-2016-6347/): Improper Neutralization of Input During Web Page Generation in RESTEasy (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6346 and fix it if it is affected.

What it is: CVE-2016-6346 is a high-severity denial of service vulnerability in n/a, published on 7 Sep 2016. 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-2016-6346 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jboss.resteasy:resteasy-jaxrs (Maven): affected all versions; fixed in 3.0.20.Final
- org.jboss.resteasy:resteasy-jaxrs (Maven): affected all versions; fixed in 3.0.20.Final

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-2016-6346/ (Markdown: https://insights.sbomify.com/CVE-2016-6346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6346
- OSV: https://osv.dev/vulnerability/CVE-2016-6346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-6346/
Summaries are generated and may contain mistakes; the official description above is the record.