# CVE-2018-13112: Memory corruption in n/a

> Remote attackers can cause a denial of service via crafted packets in Tcpreplay due to a heap-based buffer over-read.

- **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:** Yes
- **Published:** 3 Jul 2018
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2018-13112, GHSA-3g5m-g7r7-6pwf, UBUNTU-CVE-2018-13112

## What is CVE-2018-13112?

CVE-2018-13112 is a high-severity memory corruption vulnerability in Broadcom Tcpreplay, published on 3 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

get_l2len in common/get.c in Tcpreplay 4.3.0 beta1 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2018-13112?

It affects 1 product.


Products: Broadcom Tcpreplay.

## How do I fix CVE-2018-13112?

Upgrade to a fixed version.

## Is CVE-2018-13112 being exploited?

There is no known exploitation of CVE-2018-13112 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-2018-13112 and fix it if it is affected.

What it is: CVE-2018-13112 is a high-severity memory corruption vulnerability in Broadcom Tcpreplay, published on 3 Jul 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-2018-13112 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-2018-13112/ (Markdown: https://insights.sbomify.com/CVE-2018-13112/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-13112
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-13112
- OSV: https://osv.dev/vulnerability/CVE-2018-13112

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-13112/
Summaries are generated and may contain mistakes; the official description above is the record.