CVE-2023-29530 – laminas/laminas-diactoros

Package

Manager: composer
Name: laminas/laminas-diactoros
Vulnerable Version: >=0 <2.18.1 || =2.19.0 || >=2.19.0 <2.19.1 || =2.20.0 || >=2.20.0 <2.20.1 || =2.21.0 || >=2.21.0 <2.21.1 || =2.22.0 || >=2.22.0 <2.22.1 || =2.23.0 || >=2.23.0 <2.23.1 || >=2.24.0 <2.24.2 || >=2.25.0 <2.25.2

Severity

Level: High

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

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

EPSS: 0.00179 pctl0.39769

Details

HTTP Multiline Header Termination ### Impact Affected versions of Laminas Diactoros accepted a single line feed (LF / `\n` ) character at the end of a header name. When serializing such a header name containing a line-feed into the on-the-wire representation of a HTTP/1.x message, the resulting message would be syntactically invalid, due to the header line being terminated too early. An attacker that is able to control the header names that are passed to Laminas Diactoros would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service’s web application firewall bans the application due to the receipt of malformed requests. ### Patches The problem has been patched in the following versions: - 2.18.1 - 2.19.1 - 2.20.1 - 2.21.1 - 2.22.1 - 2.23.1 - 2.24.2 - 2.25.2 ### Workarounds Validate HTTP header keys and/or values, and if using user-supplied values, filter them to strip off leading or trailing newline characters before calling `withHeader()`. ### References - CVE-2023-29197 - GHSA-wxmh-65f7-jcvw

Metadata

Created: 2023-04-24T22:42:39Z
Modified: 2023-04-28T20:07:40Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-xv3h-4844-9h36/GHSA-xv3h-4844-9h36.json
CWE IDs: ["CWE-20"]
Alternative ID: GHSA-xv3h-4844-9h36
Finding: F184
Auto approve: 1