FKIE_CVE-2023-28756

Vulnerability from fkie_nvd - Published: 2023-03-31 04:15 - Updated: 2025-11-04 17:15
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
References
cve@mitre.orghttps://github.com/ruby/time/releases/Release Notes
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2023/04/msg00033.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/
cve@mitre.orghttps://security.gentoo.org/glsa/202401-27
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20230526-0004/Third Party Advisory
cve@mitre.orghttps://www.ruby-lang.org/en/downloads/releases/Release Notes
cve@mitre.orghttps://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/Release Notes
cve@mitre.orghttps://www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ruby/time/releases/Release Notes
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/04/msg00033.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202401-27
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230526-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.ruby-lang.org/en/downloads/releases/Release Notes
af854a3a-2127-422b-91ae-364da2661108https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/Release Notes
af854a3a-2127-422b-91ae-364da2661108https://www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/Vendor Advisory
Impacted products
Vendor Product Version
ruby-lang ruby *
ruby-lang time 0.1.0
ruby-lang time 0.2.1
debian debian_linux 10.0
fedoraproject fedora 36
fedoraproject fedora 37
fedoraproject fedora 38
To clipboard 

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              "versionEndIncluding": "2.7.7",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2."
    }
  ],
  "id": "CVE-2023-28756",
  "lastModified": "2025-11-04T17:15:36.440",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2023-03-31T04:15:09.090",
  "references": [
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-1333"
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      "source": "nvd@nist.gov",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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