# CVE-2011-0389: Denial of service in n/a

> Remote attackers can crash Cisco TelePresence Multipoint Switch devices by sending crafted RTCP UDP packets, causing denial of service.

- **Severity:** High 7.8 (`AV:N/AC:L/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Feb 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-xrvp-4p2v-gq5h

## What is CVE-2011-0389?

CVE-2011-0389 is a high-severity denial of service vulnerability in n/a, published on 25 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cisco TelePresence Multipoint Switch (CTMS) devices with software 1.0.x, 1.1.x, 1.5.x, and 1.6.x allow remote attackers to cause a denial of service (process crash) via a crafted Real-Time Transport Control Protocol (RTCP) UDP packet, aka Bug ID CSCth60993.

Weakness: CWE-399

## Which versions are affected by CVE-2011-0389?

It affects 2 products.


Products: Cisco Telepresence Multipoint Switch, Cisco Telepresence Multipoint Switch Software.

## How do I fix CVE-2011-0389?

No fix has been published for CVE-2011-0389 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-0389 being exploited?

There is no known exploitation of CVE-2011-0389 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2011-0383](https://insights.sbomify.com/CVE-2011-0383/): Auth bypass in n/a (critical 10.0)
- [CVE-2011-0384](https://insights.sbomify.com/CVE-2011-0384/): Auth bypass in n/a (critical 10.0)
- [CVE-2011-0385](https://insights.sbomify.com/CVE-2011-0385/): File upload in n/a (critical 10.0)
- [CVE-2011-0387](https://insights.sbomify.com/CVE-2011-0387/): Missing authorization in n/a (high 8.0)
- [CVE-2011-0388](https://insights.sbomify.com/CVE-2011-0388/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-0389 and fix it if it is affected.

What it is: CVE-2011-0389 is a high-severity denial of service vulnerability in n/a, published on 25 Feb 2011. 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-2011-0389 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-2011-0389/ (Markdown: https://insights.sbomify.com/CVE-2011-0389/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-0389
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-0389
- OSV: https://osv.dev/vulnerability/CVE-2011-0389

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-0389/
Summaries are generated and may contain mistakes; the official description above is the record.