# CVE-2023-24548: Denial of service in EOS

> Malformed VXLAN packets can cause egress ports to stop forwarding traffic, leading to denial of service on Arista EOS devices.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Aug 2023
- **Updated:** 30 Sep 2024
- **Also known as:** GHSA-g69p-vmrw-qm7g

## What is CVE-2023-24548?

CVE-2023-24548 is a medium-severity denial of service vulnerability in Arista Networks EOS, published on 29 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

On affected platforms running Arista EOS with VXLAN configured, malformed or truncated packets received over a VXLAN tunnel and forwarded in hardware can cause egress ports to be unable to forward packets. The device will continue to be susceptible to the issue until remediation is in place.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-24548?

It affects 1 product.


Products: Arista Eos.

## How do I fix CVE-2023-24548?

No fix has been published for CVE-2023-24548 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24548 being exploited?

There is no known exploitation of CVE-2023-24548 in the wild and no public exploit code.

## Other vulnerabilities in Arista Networks EOS

- [CVE-2026-7473](https://insights.sbomify.com/CVE-2026-7473/): Arista Extensible Operating System Incomplete Comparison with Missing Factors (medium 6.9, exploited in the wild)
- [CVE-2015-8236](https://insights.sbomify.com/CVE-2015-8236/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-10188](https://insights.sbomify.com/CVE-2020-10188/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-18017](https://insights.sbomify.com/CVE-2017-18017/): Use after free in n/a (critical 9.8)
- [CVE-2017-14491](https://insights.sbomify.com/CVE-2017-14491/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24548 and fix it if it is affected.

What it is: CVE-2023-24548 is a medium-severity denial of service vulnerability in Arista Networks EOS, published on 29 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-24548 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-2023-24548/ (Markdown: https://insights.sbomify.com/CVE-2023-24548/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24548
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24548
- OSV: https://osv.dev/vulnerability/CVE-2023-24548

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24548/
Summaries are generated and may contain mistakes; the official description above is the record.