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CVE-2021-41816

Published: Feb 6, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-190
9.8CRITICAL
NVD MITRE
EPSS Score
4.8%
Top 8.9%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-190

Affected Products

ruby-lang
oss-projectaka rexml, ruby
cgiLibraryLibrary
OSS Libraries / generic-library
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
RubyGems
package-ecosystem
cgi
OSS Libraries
Red Hat Inc.
commercial·USaka red hat
Red Hat Software CollectionsOn-prem
Operating Systems / linux-distro
Novell Inc.
commercial·US
openSUSE TumbleweedOn-prem
Operating Systems / linux-distro
Ruby Team
oss-projectaka ruby-lang
cgiLibraryLibrary
OSS Libraries / generic-library
and 2 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://hackerone.com/reports/1328463
hackerone.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/
lists.fedoraproject.org
and 23 more references View all →

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