CVE-2021-31872 (GCVE-0-2021-31872)

Vulnerability from cvelistv5 – Published: 2021-04-30 05:19 – Updated: 2024-08-03 23:10
VLAI
Summary
An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:10:31.023Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
          },
          {
            "name": "[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
          },
          {
            "name": "[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-28T20:06:18.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
        },
        {
          "name": "[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
        },
        {
          "name": "[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-31872",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kernel.org/pub/linux/libs/klibc/2.0/",
              "refsource": "MISC",
              "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
            },
            {
              "name": "https://lists.zytor.com/archives/klibc/2021-April/004593.html",
              "refsource": "MISC",
              "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
            },
            {
              "name": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff",
              "refsource": "MISC",
              "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
            },
            {
              "name": "[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
            },
            {
              "name": "[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-31872",
    "datePublished": "2021-04-30T05:19:04.000Z",
    "dateReserved": "2021-04-29T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:10:31.023Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-31872",
      "date": "2026-09-25",
      "epss": "0.02076",
      "percentile": "0.80678"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:x86:*:*",
                  "matchCriteriaId": "FF639C25-F2EE-43CE-9BFE-90137D24CBC3",
                  "versionEndExcluding": "2.0.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact."
        },
        {
          "lang": "es",
          "value": "Se detect\u00f3 un problema en klibc versiones anteriores a 2.0.9.\u0026#xa0;M\u00faltiples desbordamientos de enteros posibles en el comando cpio en sistemas de 32 bits pueden resultar en un desbordamiento del b\u00fafer u otro impacto en la seguridad."
        }
      ],
      "id": "CVE-2021-31872",
      "lastModified": "2024-11-21T06:06:23.997",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 7.5,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 6.4,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "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"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2021-04-30T06:15:07.313",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Release Notes",
            "Third Party Advisory"
          ],
          "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-190"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:x86:*:*",
                    "matchCriteriaId": "FF639C25-F2EE-43CE-9BFE-90137D24CBC3",
                    "versionEndExcluding": "2.0.9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact."
          },
          {
            "lang": "es",
            "value": "Se detect\u00f3 un problema en klibc versiones anteriores a 2.0.9.\u0026#xa0;M\u00faltiples desbordamientos de enteros posibles en el comando cpio en sistemas de 32 bits pueden resultar en un desbordamiento del b\u00fafer u otro impacto en la seguridad."
          }
        ],
        "id": "CVE-2021-31872",
        "lastModified": "2024-11-21T06:06:23.997",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 7.5,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "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"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-04-30T06:15:07.313",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/04/30/1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://kernel.org/pub/linux/libs/klibc/2.0/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://lists.zytor.com/archives/klibc/2021-April/004593.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-190"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:06:03+00:00",
      "cve": "CVE-2021-31872",
      "id": "CVE-2021-31872",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-31872",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-31872.json",
      "version": "3"
    }
  }
}



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.



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.