# CVE-2019-0365: Denial of service in SAP GUI for Java (BC-FES-JAV)

> An attacker can crash or flood SAP Kernel and GUI services, preventing legitimate users from accessing the system.

- **Severity:** High 7.5 (`CVSS:3.1/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:** No
- **Published:** 10 Sep 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3jfh-7px5-vr77

## What is CVE-2019-0365?

CVE-2019-0365 is a high-severity denial of service vulnerability in SAP GUI for Java (BC-FES-JAV), published on 10 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SAP Kernel (RFC), KRNL32NUC, KRNL32UC and KRNL64NUC before versions 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64UC, before versions 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.73 and KERNEL before versions 7.21, 7.49, 7.53, 7.73, 7.76 SAP GUI for Windows (BC-FES-GUI) before versions 7.5, 7.6, and SAP GUI for Java (BC-FES-JAV) before version 7.5, allow an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.

## Which versions are affected by CVE-2019-0365?

It affects 5 products.


Products: Sap Sap Kernel, Sap Sap Kernel Krnl32nuc, Sap Sap Kernel Krnl32uc, Sap Sap Kernel Krnl64nuc, Sap Sap Kernel Krnl64uc.

## How do I fix CVE-2019-0365?

No fix has been published for CVE-2019-0365 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-0365 being exploited?

There is no known exploitation of CVE-2019-0365 in the wild and no public exploit code.

## Other vulnerabilities in SAP GUI for Java (BC-FES-JAV)

- [CVE-2017-16689](https://insights.sbomify.com/CVE-2017-16689/): Auth bypass in Trusted RFC connection (high 8.8)
- [CVE-2018-2433](https://insights.sbomify.com/CVE-2018-2433/): Denial of service in SAP Gateway (high 7.5)
- [CVE-2018-2360](https://insights.sbomify.com/CVE-2018-2360/): Missing authorization in SAP Startup Service (high 7.5)
- [CVE-2017-5997](https://insights.sbomify.com/CVE-2017-5997/): Denial of service in n/a (high 7.5)
- [CVE-2014-9594](https://insights.sbomify.com/CVE-2014-9594/): Memory corruption in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0365 and fix it if it is affected.

What it is: CVE-2019-0365 is a high-severity denial of service vulnerability in SAP GUI for Java (BC-FES-JAV), published on 10 Sep 2019. 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-2019-0365 in the wild and no public exploit code.

Affected product: SAP GUI for Java (BC-FES-JAV). 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-2019-0365/ (Markdown: https://insights.sbomify.com/CVE-2019-0365/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0365
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0365
- OSV: https://osv.dev/vulnerability/CVE-2019-0365

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-0365/
Summaries are generated and may contain mistakes; the official description above is the record.