# CVE-2019-8376: Null dereference in n/a

> An attacker can cause a denial of service via segmentation fault by sending a crafted pcap file to the tcpreplay-edit binary.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 17 Feb 2019
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-8376, GHSA-ff2p-6rhf-qvm3, UBUNTU-CVE-2019-8376

## What is CVE-2019-8376?

CVE-2019-8376 is a high-severity vulnerability in Broadcom Tcpreplay, published on 17 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in Tcpreplay 4.3.1. A NULL pointer dereference occurred in the function get_layer4_v6() located at get.c. This can be triggered by sending a crafted pcap file to the tcpreplay-edit binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2019-8376?

It affects 2 products.


Products: Broadcom Tcpreplay, Fedoraproject Fedora.

## How do I fix CVE-2019-8376?

Upgrade to a fixed version.

## Is CVE-2019-8376 being exploited?

There is no known exploitation of CVE-2019-8376 in the wild and no public exploit code.

## Other vulnerabilities in Broadcom Tcpreplay

- [CVE-2018-18408](https://insights.sbomify.com/CVE-2018-18408/): Use after free in n/a (critical 9.8)
- [CVE-2020-12740](https://insights.sbomify.com/CVE-2020-12740/): Memory corruption in n/a (critical 9.1)
- [CVE-2025-51006](https://insights.sbomify.com/CVE-2025-51006/): Use after free in n/a (high 7.8)
- [CVE-2022-37047](https://insights.sbomify.com/CVE-2022-37047/): Memory corruption in n/a (high 7.8)
- [CVE-2022-37048](https://insights.sbomify.com/CVE-2022-37048/): Memory corruption in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-8376 and fix it if it is affected.

What it is: CVE-2019-8376 is a high-severity vulnerability in Broadcom Tcpreplay, published on 17 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-8376 in the wild and no public exploit code.

Affected product: Broadcom Tcpreplay. 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-2019-8376/ (Markdown: https://insights.sbomify.com/CVE-2019-8376/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-8376
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-8376
- OSV: https://osv.dev/vulnerability/CVE-2019-8376

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-8376/
Summaries are generated and may contain mistakes; the official description above is the record.