Vulnerability-Lookup

OESA-2023-1226 (CVE-2023-28756)

Vulnerability from osv_openeuler – Published: 2023-04-14 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

ruby security update

Details

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).

Security Fix(es):

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.(CVE-2023-28756)

A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.(CVE-2023-28755)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-28756	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-28755	ADVISORY

JSON

To clipboard

{
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      },
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  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).\r\n\r\nSecurity Fix(es):\r\n\r\nA 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.(CVE-2023-28756)\r\n\r\nA ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.(CVE-2023-28755)",
  "id": "OESA-2023-1226",
  "modified": "2026-08-06T11:05:42Z",
  "published": "2023-04-14T11:05:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1226"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28756"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28755"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ruby security update",
  "upstream": [
    "CVE-2023-28756",
    "CVE-2023-28755"
  ]
}

CVE-2023-28755 (GCVE-0-2023-28755)

Vulnerability from cvelistv5 – Published: 2023-03-31 00:00 – Updated: 2025-11-04 17:12

Summary

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-14 19:38 UTC

CWE

n/a
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

mitre mitre root

References

15 references

URL	Tags
https://www.ruby-lang.org/en/news/2022/12/25/ruby…
https://www.ruby-lang.org/en/downloads/releases/
https://github.com/ruby/uri/releases/
https://www.ruby-lang.org/en/news/2023/03/28/redo…
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.netapp.com/advisory/ntap-2023052…
https://security.gentoo.org/glsa/202401-27	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

JSON

To clipboard

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CVE-2023-28756 (GCVE-0-2023-28756)

Vulnerability from cvelistv5 – Published: 2023-03-31 00:00 – Updated: 2025-11-04 16:10

Summary

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-26 19:59 UTC

CWE

Assigner

mitre mitre root

References

11 references

URL	Tags
https://www.ruby-lang.org/en/news/2022/12/25/ruby…
https://www.ruby-lang.org/en/downloads/releases/
https://github.com/ruby/time/releases/
https://www.ruby-lang.org/en/news/2023/03/30/redo…
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.netapp.com/advisory/ntap-2023052…
https://security.gentoo.org/glsa/202401-27	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2023-1226 (CVE-2023-28756)

CVE-2023-28755 (GCVE-0-2023-28755)

CVE-2023-28756 (GCVE-0-2023-28756)

Tags

Sightings

Nomenclature

Related by attack behaviour