CVEvulnerability

CVE-2021-41816

9.8 CRITICAL Published 2022-02-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-02-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-190

Description

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.

Affected configurations

• ruby-lang cgi (< 0.3.1) • ruby-lang cgi (<= 0.2.0) • ruby-lang cgi (<= 0.1.0) • fedoraproject fedora 34 • fedoraproject fedora 35

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References