CVE-2021-41817
- Source
- https://cve.org/CVERecord?id=CVE-2021-41817
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41817.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-41817
- Aliases
- Downstream
- Related
- Published
- 2022-01-01T05:15:08.197Z
- Modified
- 2026-02-08T04:23:02.654218Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- 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.gentoo.org/glsa/202401-27
- https://www.ruby-lang.org/en/news/2021/11/15/date-parsing-method-regexp-dos-cve-2021-41817/
- https://hackerone.com/reports/1254844
- https://www.ruby-lang.org/en/news/2021/11/15/date-parsing-method-regexp-dos-cve-2021-41817/
Affected packages
Git / github.com/ruby/ruby
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ruby/ruby
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"source": "https://github.com/ruby/ruby/commit/f69aeb83146be640995753667fdd6c6f157527f5",
"target": {
"file": "ext/cgi/escape/escape.c",
"function": "optimized_escape_html"
},
"id": "CVE-2021-41817-2f76299c",
"signature_version": "v1",
"digest": {
"function_hash": "185553476159107413192269642060714357735",
"length": 658.0
},
"deprecated": false
},
{
"signature_type": "Line",
"source": "https://github.com/ruby/ruby/commit/f69aeb83146be640995753667fdd6c6f157527f5",
"target": {
"file": "ext/cgi/escape/escape.c"
},
"id": "CVE-2021-41817-799f160e",
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"221608888545214764521643589590002473795",
"62837079863855754692353823286478885059",
"151633818343694841750591657495653307518",
"112628295566100827065348454738811594068"
]
},
"deprecated": false
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41817.json"