# CVE-2009-2456: Denial of service in n/a

> Remote attackers can crash Novell eDirectory via crafted LDAP requests with excessive wildcards, causing service disruption.

- **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 needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jul 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-2gq8-2h6m-37fj

## What is CVE-2009-2456?

CVE-2009-2456 is a medium-severity denial of service vulnerability in Novell Edirectory, published on 14 Jul 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The DS\NDSD component in Novell eDirectory 8.8 before SP5 allows remote attackers to cause a denial of service (ndsd core dump) via an LDAP request containing multiple . (dot) wildcard characters in the Relative Distinguished Name (RDN).

## Which versions are affected by CVE-2009-2456?

It affects 1 product.


Products: Novell Edirectory.

## How do I fix CVE-2009-2456?

No fix has been published for CVE-2009-2456 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-2456 being exploited?

There is no known exploitation of CVE-2009-2456 in the wild and no public exploit code.

## Other vulnerabilities in Novell Edirectory

- [CVE-2009-0895](https://insights.sbomify.com/CVE-2009-0895/): Integer overflow in n/a (critical 10.0)
- [CVE-2008-5091](https://insights.sbomify.com/CVE-2008-5091/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-5092](https://insights.sbomify.com/CVE-2008-5092/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-5094](https://insights.sbomify.com/CVE-2008-5094/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-4478](https://insights.sbomify.com/CVE-2008-4478/): Integer overflow in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-2456 and fix it if it is affected.

What it is: CVE-2009-2456 is a medium-severity denial of service vulnerability in Novell Edirectory, published on 14 Jul 2009. 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-2009-2456 in the wild and no public exploit code.

Affected product: Novell Edirectory. 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-2009-2456/ (Markdown: https://insights.sbomify.com/CVE-2009-2456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-2456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-2456
- OSV: https://osv.dev/vulnerability/CVE-2009-2456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-2456/
Summaries are generated and may contain mistakes; the official description above is the record.