CVE-2021-33621

Severity CVSS v4.0:

Pending analysis

Type:

CWE-74 Injection

Publication date:

18/11/2022

Last modified:

04/11/2025

Description

The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.

Impact

Vector 3.x

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

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:ruby-lang:cgi::::::ruby::*		0.1.0.2 (excluding)
cpe:2.3:a:ruby-lang:cgi::::::ruby::*	0.2.0 (including)	0.2.2 (excluding)
cpe:2.3:a:ruby-lang:cgi::::::ruby::*	0.3.0 (including)	0.3.5 (excluding)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:fedoraproject:fedora:36:::::::*
cpe:2.3:o:fedoraproject:fedora:37:::::::*
cpe:2.3:a:ruby-lang:ruby::::::::	2.7.0 (including)	2.7.7 (excluding)
cpe:2.3:a:ruby-lang:ruby::::::::	3.0.0 (including)	3.0.5 (excluding)
cpe:2.3:a:ruby-lang:ruby::::::::	3.1.0 (including)	3.1.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-33621

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools