# CVE-2023-6194: XML external entity in Eclipse Memory Analyzer (tools.mat)

> Attackers can exploit XML external entity injection in report definitions to access local files or cause denial of service.

- **Severity:** Low 2.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-45gw-94j4-w3hh, UBUNTU-CVE-2023-6194

## What is CVE-2023-6194?

CVE-2023-6194 is a low-severity vulnerability in Eclipse Memory Analyzer (tools.mat), published on 11 Dec 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In Eclipse Memory Analyzer versions 0.7 to 1.14.0, report definition XML files are not filtered to prohibit
document type definition (DTD) references to external entities.
This means that if a user chooses to use a malicious report definition XML file containing an external entity reference
to generate a report then Eclipse Memory Analyzer may access external files or URLs defined via a DTD in the report definition.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2023-6194?

It affects 1 product.


Products: Eclipse Memory Analyzer.

## How do I fix CVE-2023-6194?

No fix has been published for CVE-2023-6194 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6194 being exploited?

There is no known exploitation of CVE-2023-6194 in the wild and no public exploit code.

## Other vulnerabilities in Eclipse Memory Analyzer (tools.mat)

- [CVE-2019-17634](https://insights.sbomify.com/CVE-2019-17634/): Cross-site scripting in Eclipse Memory Analyzer (critical 9.0)
- [CVE-2019-17635](https://insights.sbomify.com/CVE-2019-17635/): Deserialization in Eclipse Memory Analyzer (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6194 and fix it if it is affected.

What it is: CVE-2023-6194 is a low-severity vulnerability in Eclipse Memory Analyzer (tools.mat), published on 11 Dec 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-6194 in the wild and no public exploit code.

Affected product: Eclipse Memory Analyzer (tools.mat). 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-2023-6194/ (Markdown: https://insights.sbomify.com/CVE-2023-6194/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6194
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6194
- OSV: https://osv.dev/vulnerability/CVE-2023-6194

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6194/
Summaries are generated and may contain mistakes; the official description above is the record.