# CVE-2007-1918: Denial of service in n/a

> Remote attackers can cause denial of service by locking out clients via the exclusive access option in the SAP RFC Library.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Apr 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-vcj7-x5xm-h7mr

## What is CVE-2007-1918?

CVE-2007-1918 is a medium-severity denial of service vulnerability in n/a, published on 10 Apr 2007. It can be exploited over the network, with no action from the victim.

### Official description

The RFC_SET_REG_SERVER_PROPERTY function in the SAP RFC Library 6.40 and 7.00 before 20070109 implements an option for exclusive access to an RFC server, which allows remote attackers to cause a denial of service (client lockout) via unspecified vectors.  NOTE: This information is based upon a vague initial disclosure. Details will be updated after the grace period has ended.

## Which versions are affected by CVE-2007-1918?

It affects 1 product.


Products: Sap Rfc Library.

## How do I fix CVE-2007-1918?

No fix has been published for CVE-2007-1918 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-1918 being exploited?

There is no known exploitation of CVE-2007-1918 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2007-1916](https://insights.sbomify.com/CVE-2007-1916/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-1917](https://insights.sbomify.com/CVE-2007-1917/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-1914](https://insights.sbomify.com/CVE-2007-1914/): Information disclosure in n/a (high 7.8)
- [CVE-2007-1915](https://insights.sbomify.com/CVE-2007-1915/): Memory corruption in n/a (high 7.5)
- [CVE-2007-1913](https://insights.sbomify.com/CVE-2007-1913/): Information disclosure in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-1918 and fix it if it is affected.

What it is: CVE-2007-1918 is a medium-severity denial of service vulnerability in n/a, published on 10 Apr 2007. It can be exploited over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-1918 in the wild and no public exploit code.

Affected product: n/a. 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-2007-1918/ (Markdown: https://insights.sbomify.com/CVE-2007-1918/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-1918
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-1918
- OSV: https://osv.dev/vulnerability/CVE-2007-1918

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-1918/
Summaries are generated and may contain mistakes; the official description above is the record.