Vulnerability-Lookup

ubuntu-cve-2021-3912

Vulnerability from osv_ubuntu

Published

2021-11-11 22:15

Modified

2025-07-16 04:56

Summary

Details

OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash).

Severity

6.5 (Medium)


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

4.2 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-3912	REPORT
	https://github.com/cloudflare/cfrpki/security/adv…	REPORT
	https://github.com/cloudflare/cfrpki/commit/32961…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-3912	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "octorpki",
            "binary_version": "1.4.2-1"
          },
          {
            "binary_name": "octorpki-dbgsym",
            "binary_version": "1.4.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "cfrpki",
        "purl": "pkg:deb/ubuntu/cfrpki@1.4.2-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.2-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.2-1",
        "1.3.0-1",
        "1.4.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash).",
  "id": "UBUNTU-CVE-2021-3912",
  "modified": "2025-07-16T04:56:47Z",
  "published": "2021-11-11T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3912"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hg"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cloudflare/cfrpki/commit/32961e7a41cae67660dfee92095a1f6c2f86f943"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3912"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3912"
  ],
  "withdrawn": "2025-07-18T16:46:31Z"
}

CVE-2021-3912 (GCVE-0-2021-3912)

Vulnerability from cvelistv5 – Published: 2021-11-11 21:45 – Updated: 2024-09-16 23:41

Title

OctoRPKI crashes when processing GZIP bomb returned via malicious repository

Summary

Severity

4.2 (Medium)


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

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

cloudflare

References

2 references

URL	Tags
https://github.com/cloudflare/cfrpki/security/adv…	x_refsource_MISC
https://www.debian.org/security/2022/dsa-5041	vendor-advisoryx_refsource_DEBIAN

Impacted products

1 product

Vendor	Product	Version
Cloudflare	octorpki	Affected: unspecified , < 1.4.0 (custom)

Date Public

2021-11-01 00:00

Credits

Koen van Hove

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.616Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hg"
          },
          {
            "name": "DSA-5041",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5041"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "octorpki",
          "vendor": "Cloudflare",
          "versions": [
            {
              "lessThan": "1.4.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Koen van Hove"
        }
      ],
      "datePublic": "2021-11-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/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"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-12T10:06:14.000Z",
        "orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
        "shortName": "cloudflare"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hg"
        },
        {
          "name": "DSA-5041",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5041"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to 1.4"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "OctoRPKI crashes when processing GZIP bomb returned via malicious repository",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cna@cloudflare.com",
          "DATE_PUBLIC": "2021-11-01T22:54:00.000Z",
          "ID": "CVE-2021-3912",
          "STATE": "PUBLIC",
          "TITLE": "OctoRPKI crashes when processing GZIP bomb returned via malicious repository"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "octorpki",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "1.4.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cloudflare"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Koen van Hove"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "OctoRPKI tries to load the entire contents of a repository in memory, and in the case of a GZIP bomb, unzip it in memory, making it possible to create a repository that makes OctoRPKI run out of memory (and thus crash)."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-400 Uncontrolled Resource Consumption"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hg",
              "refsource": "MISC",
              "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g9wh-3vrx-r7hg"
            },
            {
              "name": "DSA-5041",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2022/dsa-5041"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to 1.4"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
    "assignerShortName": "cloudflare",
    "cveId": "CVE-2021-3912",
    "datePublished": "2021-11-11T21:45:24.415Z",
    "dateReserved": "2021-10-26T00:00:00.000Z",
    "dateUpdated": "2024-09-16T23:41:30.954Z",
    "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.

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.

Action not permitted

ubuntu-cve-2021-3912

Vulnerability from osv_ubuntu

CVE-2021-3912 (GCVE-0-2021-3912)

Tags

Sightings

Nomenclature