Vulnerability-Lookup

OESA-2025-1195 (CVE-2025-25186)

Vulnerability from osv_openeuler – Published: 2025-02-28 11:08 – Updated: 2026-08-06 11:08 – 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):

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is connected, a malicious server can send can send highly compressed uid-set data which is automatically read by the client's receiver thread. The response parser uses Range#to_a to convert the uid-set data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory.(CVE-2025-25186)

Severity

6.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-25186	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "ruby-3.2.2-148.oe2403.aarch64.rpm",
          "ruby-bundled-gems-3.2.2-148.oe2403.aarch64.rpm",
          "ruby-debuginfo-3.2.2-148.oe2403.aarch64.rpm",
          "ruby-debugsource-3.2.2-148.oe2403.aarch64.rpm",
          "ruby-devel-3.2.2-148.oe2403.aarch64.rpm",
          "rubygem-bigdecimal-3.1.3-148.oe2403.aarch64.rpm",
          "rubygem-io-console-0.6.0-148.oe2403.aarch64.rpm",
          "rubygem-json-2.6.3-148.oe2403.aarch64.rpm",
          "rubygem-openssl-3.1.0-148.oe2403.aarch64.rpm",
          "rubygem-psych-5.0.1-148.oe2403.aarch64.rpm",
          "rubygem-rbs-2.8.2-148.oe2403.aarch64.rpm"
        ],
        "noarch": [
          "ruby-help-3.2.2-148.oe2403.noarch.rpm",
          "ruby-irb-3.2.2-148.oe2403.noarch.rpm",
          "rubygem-did_you_mean-1.6.3-148.oe2403.noarch.rpm",
          "rubygem-minitest-5.16.3-148.oe2403.noarch.rpm",
          "rubygem-rake-13.0.6-148.oe2403.noarch.rpm",
          "rubygem-rdoc-6.5.0-148.oe2403.noarch.rpm",
          "rubygem-rexml-3.2.5-148.oe2403.noarch.rpm",
          "rubygem-rss-0.2.9-148.oe2403.noarch.rpm",
          "rubygem-test-unit-3.5.7-148.oe2403.noarch.rpm",
          "rubygem-typeprof-0.21.3-148.oe2403.noarch.rpm",
          "rubygems-3.4.10-148.oe2403.noarch.rpm",
          "rubygems-devel-3.4.10-148.oe2403.noarch.rpm"
        ],
        "src": [
          "ruby-3.2.2-148.oe2403.src.rpm"
        ],
        "x86_64": [
          "ruby-3.2.2-148.oe2403.x86_64.rpm",
          "ruby-bundled-gems-3.2.2-148.oe2403.x86_64.rpm",
          "ruby-debuginfo-3.2.2-148.oe2403.x86_64.rpm",
          "ruby-debugsource-3.2.2-148.oe2403.x86_64.rpm",
          "ruby-devel-3.2.2-148.oe2403.x86_64.rpm",
          "rubygem-bigdecimal-3.1.3-148.oe2403.x86_64.rpm",
          "rubygem-io-console-0.6.0-148.oe2403.x86_64.rpm",
          "rubygem-json-2.6.3-148.oe2403.x86_64.rpm",
          "rubygem-openssl-3.1.0-148.oe2403.x86_64.rpm",
          "rubygem-psych-5.0.1-148.oe2403.x86_64.rpm",
          "rubygem-rbs-2.8.2-148.oe2403.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "ruby",
        "purl": "pkg:rpm/openEuler/ruby\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.2-148.oe2403"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "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):\n\nNet::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in `net-imap`\u0026apos;s response parser.  At any time while the client is connected, a malicious server can send  can send highly compressed `uid-set` data which is automatically read by the client\u0026apos;s receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory.(CVE-2025-25186)",
  "id": "OESA-2025-1195",
  "modified": "2026-08-06T11:08:17Z",
  "published": "2025-02-28T11:08:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1195"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-25186"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ruby security update",
  "upstream": [
    "CVE-2025-25186"
  ]
}

CVE-2025-25186 (GCVE-0-2025-25186)

Vulnerability from cvelistv5 – Published: 2025-02-10 15:55 – Updated: 2025-02-12 15:46

Title

Net::IMAP vulnerable to possible DoS by memory exhaustion

Summary

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in `net-imap`'s response parser. At any time while the client is connected, a malicious server can send can send highly compressed `uid-set` data which is automatically read by the client's receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory.

Severity

6.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-10 16:13 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-405 - Asymmetric Resource Consumption (Amplification)
CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
CWE-770 - Allocation of Resources Without Limits or Throttling
CWE-789 - Memory Allocation with Excessive Size Value
CWE-1287 - Improper Validation of Specified Type of Input

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/ruby/net-imap/security/advisor…	x_refsource_CONFIRM
https://github.com/ruby/net-imap/commit/70e3ddd07…	x_refsource_MISC
https://github.com/ruby/net-imap/commit/c8c5a6437…	x_refsource_MISC
https://github.com/ruby/net-imap/commit/cb92191b1…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ruby	net-imap	Affected: >= 0.3.2, < 0.3.8 Affected: >= 0.4.0, < 0.4.19 Affected: >= 0.5.0, < 0.5.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-25186",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-10T16:13:53.189390Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-12T15:46:11.581Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "net-imap",
          "vendor": "ruby",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.3.2, \u003c 0.3.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 0.4.0, \u003c 0.4.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 0.5.0, \u003c 0.5.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in `net-imap`\u0027s response parser.  At any time while the client is connected, a malicious server can send  can send highly compressed `uid-set` data which is automatically read by the client\u0027s receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-405",
              "description": "CWE-405: Asymmetric Resource Consumption (Amplification)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-409",
              "description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1287",
              "description": "CWE-1287: Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-02-10T15:55:56.666Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ruby/net-imap/security/advisories/GHSA-7fc5-f82f-cx69",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ruby/net-imap/security/advisories/GHSA-7fc5-f82f-cx69"
        },
        {
          "name": "https://github.com/ruby/net-imap/commit/70e3ddd071a94e450b3238570af482c296380b35",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ruby/net-imap/commit/70e3ddd071a94e450b3238570af482c296380b35"
        },
        {
          "name": "https://github.com/ruby/net-imap/commit/c8c5a643739d2669f0c9a6bb9770d0c045fd74a3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ruby/net-imap/commit/c8c5a643739d2669f0c9a6bb9770d0c045fd74a3"
        },
        {
          "name": "https://github.com/ruby/net-imap/commit/cb92191b1ddce2d978d01b56a0883b6ecf0b1022",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ruby/net-imap/commit/cb92191b1ddce2d978d01b56a0883b6ecf0b1022"
        }
      ],
      "source": {
        "advisory": "GHSA-7fc5-f82f-cx69",
        "discovery": "UNKNOWN"
      },
      "title": "Net::IMAP vulnerable to possible DoS by memory exhaustion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-25186",
    "datePublished": "2025-02-10T15:55:56.666Z",
    "dateReserved": "2025-02-03T19:30:53.399Z",
    "dateUpdated": "2025-02-12T15:46:11.581Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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-2025-1195 (CVE-2025-25186)

CVE-2025-25186 (GCVE-0-2025-25186)

Tags

Sightings

Nomenclature

Related by attack behaviour