CVE-2024-27280 (GCVE-0-2024-27280)

Vulnerability from cvelistv5 – Published: 2024-05-08 20:51 – Updated: 2025-11-04 17:17
VLAI
Summary
A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
Vendor Product Version
ruby-lang ruby Affected: 3.0.3 , ≤ 3.0.6 (custom)
    cpe:2.3:a:ruby-lang:ruby:-:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:ruby-lang:ruby:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ruby",
            "vendor": "ruby-lang",
            "versions": [
              {
                "lessThanOrEqual": "3.0.6",
                "status": "affected",
                "version": "3.0.3",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-27280",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-09T18:08:05.682025Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-120",
                "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:46:36.722Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T17:17:47.556Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1399856"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/"
          },
          {
            "url": "https://security.netapp.com/advisory/ntap-20250502-0003/"
          },
          {
            "url": "http://seclists.org/fulldisclosure/2025/Sep/55"
          },
          {
            "url": "http://seclists.org/fulldisclosure/2025/Sep/54"
          },
          {
            "url": "http://seclists.org/fulldisclosure/2025/Sep/53"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27LUWREIFTP3MQAW7QE4PJM4DPAQJWXF/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XYDHPHEZI7OQXTQKTDZHGZNPIJH7ZV5N/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-08T20:51:20.724Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://hackerone.com/reports/1399856"
        },
        {
          "url": "https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-27280",
    "datePublished": "2024-05-08T20:51:20.388Z",
    "dateReserved": "2024-02-22T00:00:00.000Z",
    "dateUpdated": "2025-11-04T17:17:47.556Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-27280",
      "date": "2026-07-02",
      "epss": "0.02364",
      "percentile": "0.81724"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.\"}, {\"lang\": \"es\", \"value\": \"Se descubri\\u00f3 un problema de sobrelectura del b\\u00fafer en StringIO 3.0.1, distribuido en Ruby 3.0.x hasta 3.0.6 y 3.1.x hasta 3.1.4. Los m\\u00e9todos ungetbyte y ungetc en StringIO pueden leer m\\u00e1s all\\u00e1 del final de una cadena, y una llamada posterior a StringIO.gets puede devolver el valor de la memoria. 3.0.3 es la versi\\u00f3n fija principal; sin embargo, para los usuarios de Ruby 3.0, una versi\\u00f3n fija es stringio 3.0.1.1, y para los usuarios de Ruby 3.1, una versi\\u00f3n fija es stringio 3.0.1.2.\"}]",
      "id": "CVE-2024-27280",
      "lastModified": "2024-11-21T09:04:13.950",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}]}",
      "published": "2024-05-14T15:11:56.940",
      "references": "[{\"url\": \"https://hackerone.com/reports/1399856\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://hackerone.com/reports/1399856\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-120\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-27280\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-05-14T15:11:56.940\",\"lastModified\":\"2026-06-17T07:19:33.770\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.\"},{\"lang\":\"es\",\"value\":\"Se descubri\u00f3 un problema de sobrelectura del b\u00fafer en StringIO 3.0.1, distribuido en Ruby 3.0.x hasta 3.0.6 y 3.1.x hasta 3.1.4. Los m\u00e9todos ungetbyte y ungetc en StringIO pueden leer m\u00e1s all\u00e1 del final de una cadena, y una llamada posterior a StringIO.gets puede devolver el valor de la memoria. 3.0.3 es la versi\u00f3n fija principal; sin embargo, para los usuarios de Ruby 3.0, una versi\u00f3n fija es stringio 3.0.1.1, y para los usuarios de Ruby 3.1, una versi\u00f3n fija es stringio 3.0.1.2.\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"n/a\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"ruby-lang\",\"product\":\"ruby\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:a:ruby-lang:ruby:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"3.0.3\",\"lessThanOrEqual\":\"3.0.6\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-05-09T18:08:05.682025Z\",\"id\":\"CVE-2024-27280\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"references\":[{\"url\":\"https://hackerone.com/reports/1399856\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://seclists.org/fulldisclosure/2025/Sep/53\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2025/Sep/54\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2025/Sep/55\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://hackerone.com/reports/1399856\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27LUWREIFTP3MQAW7QE4PJM4DPAQJWXF/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XYDHPHEZI7OQXTQKTDZHGZNPIJH7ZV5N/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20250502-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://hackerone.com/reports/1399856\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20250502-0003/\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Sep/55\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Sep/54\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Sep/53\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T18:08:20.761Z\"}}, {\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-27280\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-09T18:08:05.682025Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:ruby-lang:ruby:-:*:*:*:*:*:*:*\"], \"vendor\": \"ruby-lang\", \"product\": \"ruby\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.0.3\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"3.0.6\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-09T18:04:48.719Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://hackerone.com/reports/1399856\"}, {\"url\": \"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2024-05-08T20:51:20.724Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-27280\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T18:08:20.761Z\", \"dateReserved\": \"2024-02-22T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2024-05-08T20:51:20.388Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.