CVE-2021-41816

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-41816
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://hackerone.com/reports/1328463 Permissions Required Third Party Advisory
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/
https://security-tracker.debian.org/tracker/CVE-2021-41816 Third Party Advisory
https://security.gentoo.org/glsa/202401-27
https://security.netapp.com/advisory/ntap-20220303-0006/ Third Party Advisory
https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/ Exploit Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*

Configuration 2 (hide)

AND
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*

Configuration 3 (hide)

AND
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*

Configuration 4 (hide)

OR cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
History

24 Jan 2024, 05:15

Type Values Removed Values Added
References
  • () https://security.gentoo.org/glsa/202401-27 -

07 Nov 2023, 03:39

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/', 'name': 'FEDORA-2022-8cf0124add', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/', 'name': 'FEDORA-2022-82a9edac27', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/ -

10 Sep 2022, 02:41

Type Values Removed Values Added
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/ - Mailing List, Third Party Advisory
First Time Fedoraproject
Fedoraproject fedora
CPE cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

08 May 2022, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/ -
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/ -

30 Apr 2022, 02:56

Type Values Removed Values Added
References (CONFIRM) https://security.netapp.com/advisory/ntap-20220303-0006/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20220303-0006/ - Third Party Advisory

03 Mar 2022, 11:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20220303-0006/ -

14 Feb 2022, 20:56

Type Values Removed Values Added
References (MISC) https://security-tracker.debian.org/tracker/CVE-2021-41816 - (MISC) https://security-tracker.debian.org/tracker/CVE-2021-41816 - Third Party Advisory
References (CONFIRM) https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/ - (CONFIRM) https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/ - Exploit, Vendor Advisory
References (MISC) https://hackerone.com/reports/1328463 - (MISC) https://hackerone.com/reports/1328463 - Permissions Required, Third Party Advisory
First Time Ruby-lang ruby
Ruby-lang cgi
Ruby-lang
CWE CWE-190
CPE cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8

06 Feb 2022, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-02-06 21:15

Updated : 2024-01-24 05:15

NVD link : CVE-2021-41816

Mitre link : CVE-2021-41816

CVE.ORG link : CVE-2021-41816

JSON object : View

Products Affected

ruby-lang

  • ruby
  • cgi

fedoraproject

  • fedora
CWE
CWE-190

Integer Overflow or Wraparound