CVE-2022-39294

conduit-hyper integrates a conduit application with the hyper server. Prior to version 0.4.2, `conduit-hyper` did not check any limit on a request's length before calling [`hyper::body::to_bytes`](https://docs.rs/hyper/latest/hyper/body/fn.to_bytes.html). An attacker could send a malicious request with an abnormally large `Content-Length`, which could lead to a panic if memory allocation failed for that request. In version 0.4.2, `conduit-hyper` sets an internal limit of 128 MiB per request, otherwise returning status 400 ("Bad Request"). This crate is part of the implementation of Rust's [crates.io](https://crates.io/), but that service is not affected due to its existing cloud infrastructure, which already drops such malicious requests. Even with the new limit in place, `conduit-hyper` is not recommended for production use, nor to directly serve the public Internet.

Score

CVSS 3.1 7.5 High

Status

Modified - security-advisories@github.com

Published

2022-10-31

Last modified

2025-04-23

Weaknesses

CWE-1284, CWE-400

Affected products

• Conduit-hyper (Conduit-hyper Project)
• Conduit-hyper (Conduit-rust)

References

• https://github.com/conduit-rust/conduit-hyper/security/advisories/GHSA-9398-5ghf-7pr6