CVE-2023-27530 – rack

Package

Manager: gem
Name: rack
Vulnerable Version: >=0 <2.0.9.3 || >=2.1.0 <2.1.4.3 || >=2.2.0 <2.2.6.3 || >=3.0.0 <3.0.4.2

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: 0.01904 pctl0.82541

Details

Rack has possible DoS Vulnerability in Multipart MIME parsing There is a possible DoS vulnerability in the Multipart MIME parsing code in Rack. This vulnerability has been assigned the CVE identifier CVE-2023-27530. Versions Affected: All. Not affected: None Fixed Versions: 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3 # Impact The Multipart MIME parsing code in Rack limits the number of file parts, but does not limit the total number of parts that can be uploaded. Carefully crafted requests can abuse this and cause multipart parsing to take longer than expected. All users running an affected release should either upgrade or use one of the workarounds immediately. # Workarounds A proxy can be configured to limit the POST body size which will mitigate this issue.

Metadata

Created: 2023-03-08T17:20:04Z
Modified: 2025-02-13T18:41:56Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-3h57-hmj3-gj3p/GHSA-3h57-hmj3-gj3p.json
CWE IDs: ["CWE-400", "CWE-770"]
Alternative ID: GHSA-3h57-hmj3-gj3p
Finding: F067
Auto approve: 1