CVE-2021-41816
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-41816
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41816.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-41816
- Aliases
- Downstream
- Related
- Published
- 2022-02-06T21:15:07Z
- Modified
- 2025-10-08T04:53:15.462671Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
CGI.escapehtml in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where sizet and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.
- References
-
- https://hackerone.com/reports/1328463
- https://security-tracker.debian.org/tracker/CVE-2021-41816
- https://security.gentoo.org/glsa/202401-27
- https://security.netapp.com/advisory/ntap-20220303-0006/
- https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/