CVE-2022-41915 – io.netty:netty-codec-http

Package

Manager: maven
Name: io.netty:netty-codec-http
Vulnerable Version: >=4.1.83.final <4.1.86.final

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00205 pctl0.42829

Details

Netty vulnerable to HTTP Response splitting from assigning header value iterator ### Impact When calling `DefaultHttpHeaders.set` with an _iterator_ of values (as opposed to a single given value), header value validation was not performed, allowing malicious header values in the iterator to perform [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting). ### Patches The necessary validation was added in Netty 4.1.86.Final. ### Workarounds Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values. ### References [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting) [CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers](https://cwe.mitre.org/data/definitions/113.html) ### For more information If you have any questions or comments about this advisory: * Open an issue in [[example link to repo](https://github.com/netty/netty)](https://github.com/netty/netty) * Email us at [netty-security@googlegroups.com](mailto:netty-security@googlegroups.com)

Metadata

Created: 2022-12-12T21:25:44Z
Modified: 2023-01-10T23:07:13Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-hh82-3pmq-7frp/GHSA-hh82-3pmq-7frp.json
CWE IDs: ["CWE-113", "CWE-436"]
Alternative ID: GHSA-hh82-3pmq-7frp
Finding: F184
Auto approve: 1