# CVE-2023-24513: Denial of service in EOS

> Attackers can cause denial of service on Arista CloudEOS switches by sending malformed packets that leak buffer resources.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Apr 2023
- **Updated:** 7 Feb 2025
- **Also known as:** GHSA-c6gg-q5f6-74fh

## What is CVE-2023-24513?

CVE-2023-24513 is a medium-severity denial of service vulnerability in Arista Networks EOS, published on 12 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

On affected platforms running Arista CloudEOS an issue in the Software Forwarding Engine (Sfe) can lead to a potential denial of service attack by sending malformed packets to the switch. This causes a leak of packet buffers and if enough malformed packets are received, the switch may eventually stop forwarding traffic.

Weakness: CWE-125 (Out-of-bounds Read), CWE-126 (Buffer Over-read)

## Which versions are affected by CVE-2023-24513?

It affects 1 product.


Products: Arista Cloudeos.

## How do I fix CVE-2023-24513?

No fix has been published for CVE-2023-24513 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24513 being exploited?

There is no known exploitation of CVE-2023-24513 in the wild and no public exploit code.

## Other vulnerabilities in Arista Networks EOS

- [CVE-2023-24545](https://insights.sbomify.com/CVE-2023-24545/): Denial of service in EOS (high 7.5)
- [CVE-2020-11622](https://insights.sbomify.com/CVE-2020-11622/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24513 and fix it if it is affected.

What it is: CVE-2023-24513 is a medium-severity denial of service vulnerability in Arista Networks EOS, published on 12 Apr 2023. 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-2023-24513 in the wild and no public exploit code.

Affected product: Arista Networks EOS. 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-2023-24513/ (Markdown: https://insights.sbomify.com/CVE-2023-24513/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24513
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24513
- OSV: https://osv.dev/vulnerability/CVE-2023-24513

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24513/
Summaries are generated and may contain mistakes; the official description above is the record.