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CVE-2021-41817

Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.

Published: Jan 1, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-1333
7.5HIGH
NVD MITRE
EPSS Score
3.2%
Top 13.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

Regular expression denial of service vulnerability (ReDoS) in date

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-1333

Affected Products

ruby-lang
oss-projectaka ruby, rexml
dateLibraryLibrary
OSS Libraries / rubygems
rubyLibrary
OSS Libraries / generic-library
redhat
commercial·USaka red hat
software collectionsOn-prem
Operating Systems / linux-distro
enterprise linuxOn-premOS
Operating Systems / linux-distro
opensuse
oss-project·DE
factoryOn-prem
Operating Systems / linux-distro
leapOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
RubyGems
package-ecosystem
date
OSS Libraries
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 8 more affected products View all →

Exploitability

1 exploit source 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
Impact
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2021-41817
nvd.nist.gov
https://github.com/ruby/date/commit/3959accef8da5c128f8a8e2fd54e932a4fb253b0
github.com
https://hackerone.com/reports/1254844
hackerone.com
and 24 more references View all →
News mentions
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