CGI.escape_html 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 size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-5067-1 | ruby2.7 security update |
Github GHSA |
GHSA-5cqm-crxm-6qpv | Buffer overrun in CGI.escape_html |
Ubuntu USN |
USN-5235-1 | Ruby vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T03:22:24.883Z
Reserved: 2021-09-29T00:00:00
Link: CVE-2021-41816
No data.
Status : Modified
Published: 2022-02-06T21:15:07.887
Modified: 2024-11-21T06:26:48.520
Link: CVE-2021-41816
OpenCVE Enrichment
No data.
Debian DSA
Github GHSA
Ubuntu USN