Vulnerability Details : 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.
Vulnerability category: Input validation
Products affected by CVE-2022-39294
- cpe:2.3:a:conduit-hyper_project:conduit-hyper:*:*:*:*:*:rust:*:*
- cpe:2.3:a:conduit-hyper_project:conduit-hyper:0.2.0:-:*:*:*:rust:*:*
- cpe:2.3:a:conduit-hyper_project:conduit-hyper:0.2.0:alpha3:*:*:*:rust:*:*
- cpe:2.3:a:conduit-hyper_project:conduit-hyper:0.2.0:alpha4:*:*:*:rust:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39294
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39294
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-39294
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
-
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-39294
-
https://github.com/conduit-rust/conduit-hyper/security/advisories/GHSA-9398-5ghf-7pr6
Denial of Service from unchecked request length · Advisory · conduit-rust/conduit-hyper · GitHubThird Party Advisory
Jump to