# CVE-2018-0094: Denial of service in Cisco UCS Central Software

> Unauthenticated remote attackers can cause denial of service via high-rate IPv6 packets due to insufficient rate limiting in Cisco UCS Central.

- **Severity:** High 7.5 (`CVSS:3.0/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:** 18 Jan 2018
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-62jr-4pg7-4vr2

## What is CVE-2018-0094?

CVE-2018-0094 is a high-severity denial of service vulnerability in Cisco UCS Central Software, published on 18 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in IPv6 ingress packet processing for Cisco UCS Central Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high CPU utilization on the targeted device. The vulnerability is due to insufficient rate limiting protection for IPv6 ingress traffic. An attacker could exploit this vulnerability by sending the affected device a high rate of IPv6 packets. Successful exploitation could allow the attacker to cause a DoS condition due to CPU and resource constraints. Cisco Bug IDs: CSCuv34544.

Weakness: CWE-400 (Uncontrolled Resource Consumption), CWE-693 (Protection Mechanism Failure)

## Which versions are affected by CVE-2018-0094?

It affects 1 product.


Products: Cisco Unified Computing System Central Software.

## How do I fix CVE-2018-0094?

No fix has been published for CVE-2018-0094 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0094 being exploited?

There is no known exploitation of CVE-2018-0094 in the wild and no public exploit code.

## Other vulnerabilities in Cisco UCS Central Software

- [CVE-2015-0701](https://insights.sbomify.com/CVE-2015-0701/): Command injection in n/a (critical 10.0)
- [CVE-2016-1352](https://insights.sbomify.com/CVE-2016-1352/): Command injection in n/a (critical 9.8)
- [CVE-2018-0113](https://insights.sbomify.com/CVE-2018-0113/): Command injection in Cisco UCS Central (high 8.8)
- [CVE-2014-0730](https://insights.sbomify.com/CVE-2014-0730/): Privilege escalation in n/a (medium 6.8)
- [CVE-2016-1401](https://insights.sbomify.com/CVE-2016-1401/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0094 and fix it if it is affected.

What it is: CVE-2018-0094 is a high-severity denial of service vulnerability in Cisco UCS Central Software, published on 18 Jan 2018. 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-2018-0094 in the wild and no public exploit code.

Affected product: Cisco UCS Central Software. 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-2018-0094/ (Markdown: https://insights.sbomify.com/CVE-2018-0094/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0094
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0094
- OSV: https://osv.dev/vulnerability/CVE-2018-0094

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0094/
Summaries are generated and may contain mistakes; the official description above is the record.