# CVE-2019-18904: Migrations requests can cause DoS on rmt

> Remote attackers can cause denial of service against the SUSE RMT server by sending migration requests, requiring a patch to mitigate resource exhaustion.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Apr 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-fpvp-5qrg-qr4v, SUSE-SU-2020:0260-1, SUSE-SU-2020:0278-1, SUSE-SU-2020:1179-1, openSUSE-SU-2020:0235-1

## What is CVE-2019-18904?

CVE-2019-18904 is a medium-severity denial of service vulnerability in SUSE Linux Enterprise High Performance Computing 15-ESPOS, published on 3 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A Uncontrolled Resource Consumption vulnerability in rmt of SUSE Linux Enterprise High Performance Computing 15-ESPOS, SUSE Linux Enterprise High Performance Computing 15-LTSS, SUSE Linux Enterprise Module for Public Cloud 15-SP1, SUSE Linux Enterprise Module for Server Applications 15, SUSE Linux Enterprise Module for Server Applications 15-SP1, SUSE Linux Enterprise Server 15-LTSS, SUSE Linux Enterprise Server for SAP 15; openSUSE Leap 15.1 allows remote attackers to cause DoS against rmt by requesting migrations. This issue affects: SUSE Linux Enterprise High Performance Computing 15-ESPOS rmt-server versions prior to 2.5.2-3.26.1. SUSE Linux Enterprise High Performance Computing 15-LTSS rmt-server versions prior to 2.5.2-3.26.1. SUSE Linux Enterprise Module for Public Cloud 15-SP1 rmt-server versions prior to 2.5.2-3.9.1. SUSE Linux Enterprise Module for Server Applications 15 rmt-server versions prior to 2.5.2-3.26.1. SUSE Linux Enterprise Module for Server Applications 15-SP1 rmt-server versions prior to 2.5.2-3.9.1. SUSE Linux Enterprise Server 15-LTSS rmt-server versions prior to 2.5.2-3.26.1. SUSE Linux Enterprise Server for SAP 15 rmt-server versions prior to 2.5.2-3.26.1. openSUSE Leap 15.1 rmt-server versions prior to 2.5.2-lp151.2.9.1.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2019-18904?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `rmt-server` | SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 2.5.2-3.26.1 |
| `rmt-server` | SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 2.5.7-3.31.1 |
| `rmt-server` | SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 2.5.2-3.26.1 |
| `rmt-server` | SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 2.5.7-3.31.1 |
| `rmt-server` | SUSE:Linux Enterprise Module for Public Cloud 15 SP1 | All versions | 2.5.2-3.9.1 |
| `rmt-server` | SUSE:Linux Enterprise Module for Server Applications 15 | All versions | 2.5.2-3.26.1 |
| `rmt-server` | SUSE:Linux Enterprise Module for Server Applications 15 SP1 | All versions | 2.5.2-3.9.1 |
| `rmt-server` | SUSE:Linux Enterprise Server 15-LTSS | All versions | 2.5.2-3.26.1 |
| `rmt-server` | SUSE:Linux Enterprise Server 15-LTSS | All versions | 2.5.7-3.31.1 |
| `rmt-server` | SUSE:Linux Enterprise Server for SAP Applications 15 | All versions | 2.5.2-3.26.1 |
| `rmt-server` | SUSE:Linux Enterprise Server for SAP Applications 15 | All versions | 2.5.7-3.31.1 |
| `rmt-server` | openSUSE:Leap 15.1 | All versions | 2.5.2-lp151.2.9.1 |

Products: Opensuse Rmt-Server.

## How do I fix CVE-2019-18904?

Apply the vendor's patch.

## Is CVE-2019-18904 being exploited?

There is no known exploitation of CVE-2019-18904 in the wild and no public exploit code.

## Other vulnerabilities in SUSE Linux Enterprise High Performance Computing 15-ESPOS

- [CVE-2022-31254](https://insights.sbomify.com/CVE-2022-31254/): rmt-server-pubcloud allows to escalate from user _rmt to root (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18904 and fix it if it is affected.

What it is: CVE-2019-18904 is a medium-severity denial of service vulnerability in SUSE Linux Enterprise High Performance Computing 15-ESPOS, published on 3 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-18904 in the wild and no public exploit code.

Affected product: SUSE Linux Enterprise High Performance Computing 15-ESPOS. 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-2019-18904/ (Markdown: https://insights.sbomify.com/CVE-2019-18904/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18904
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18904
- OSV: https://osv.dev/vulnerability/CVE-2019-18904

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18904/
Summaries are generated and may contain mistakes; the official description above is the record.
