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Security Advisories: GSA_kwCzR0hTQS12YzQ3LTZycWctYzdmNc4AAv82

HTTP response splitting in CGI

Ruby gem cgi.rb prior to versions 0.3.5, 0.2.2 and 0.1.0.2 allow HTTP header injection. If a CGI application using the CGI library inserts untrusted input into the HTTP response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. This issue has been patched in versions 0.3.5, 0.2.2 and 0.1.0.2.

Permalink: https://github.com/advisories/GHSA-vc47-6rqg-c7f5
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12YzQ3LTZycWctYzdmNc4AAv82
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 1 year ago
Updated: 2 months ago


CVSS Score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-vc47-6rqg-c7f5, CVE-2021-33621
References:

Affected Packages

rubygems:cgi
Dependent packages: 21
Dependent repositories: 497
Downloads: 9,072,250 total
Affected Version Ranges: < 0.1.0.2, >= 0.2.0, < 0.2.2, >= 0.3.0, < 0.3.5
Fixed in: 0.1.0.2, 0.2.2, 0.3.5
All affected versions: 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.4.0, 0.4.1
All unaffected versions: