high7.5
CVE-2023-34188
The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers.
Impact
The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cesanta | Mongoose | before 7.10 |
Weakness classification
References
- NVD record
- CVE.org record
- https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-cesanta-mongoose-http-server
- https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f
- https://github.com/cesanta/mongoose/compare/7.9...7.10
- https://github.com/cesanta/mongoose/pull/2197
- https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-cesanta-mongoose-http-server
- https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f
- https://github.com/cesanta/mongoose/compare/7.9...7.10
- https://github.com/cesanta/mongoose/pull/2197
- https://security.netapp.com/advisory/ntap-20250228-0001/