{
  "document": {
    "aggregate_severity": {
      "text": "Medium"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/oraclelinux7els/vex/2021/cve-2021-22922-els_os-oraclelinux7els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-06-13T01:36:44Z",
      "generator": {
        "date": "2026-06-13T01:36:44Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2021-22922-ELS_OS-ORACLELINUX7ELS",
      "initial_release_date": "2021-08-05T21:15:00Z",
      "revision_history": [
        {
          "date": "2021-08-05T21:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-06-13T01:36:44Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2021-22922"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Oracle Linux 7",
                "product": {
                  "name": "Oracle Linux 7",
                  "product_id": "Oracle-Linux-7",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Oracle Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
                "product": {
                  "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
                  "product_id": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/libcurl-devel@7.29.0-59.0.3.el7_9.2?arch=i686"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
                "product": {
                  "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
                  "product_id": "libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/libcurl@7.29.0-59.0.3.el7_9.2?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64",
                "product": {
                  "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_id": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/libcurl-devel@7.29.0-59.0.3.el7_9.2?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                "product": {
                  "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_id": "libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/libcurl@7.29.0-59.0.3.el7_9.2?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                "product": {
                  "name": "curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_id": "curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/curl@7.29.0-59.0.3.el7_9.2?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Oracle Corporation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                "product": {
                  "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                  "product_id": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libcurl-devel@7.29.0-59.0.3.el7_9.2.tuxcare.els2?arch=i686"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                "product": {
                  "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                  "product_id": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libcurl@7.29.0-59.0.3.el7_9.2.tuxcare.els2?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                "product": {
                  "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_id": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libcurl-devel@7.29.0-59.0.3.el7_9.2.tuxcare.els2?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                "product": {
                  "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_id": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libcurl@7.29.0-59.0.3.el7_9.2.tuxcare.els2?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                "product": {
                  "name": "curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_id": "curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/curl@7.29.0-59.0.3.el7_9.2.tuxcare.els2?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686"
        },
        "product_reference": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686"
        },
        "product_reference": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64"
        },
        "product_reference": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64"
        },
        "product_reference": "libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64"
        },
        "product_reference": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64"
        },
        "product_reference": "libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686"
        },
        "product_reference": "libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl-0:7.29.0-59.0.3.el7_9.2.i686 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.i686"
        },
        "product_reference": "libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64"
        },
        "product_reference": "curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "curl-0:7.29.0-59.0.3.el7_9.2.x86_64 as a component of Oracle Linux 7",
          "product_id": "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.x86_64"
        },
        "product_reference": "curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
        "relates_to_product_reference": "Oracle-Linux-7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-22922",
      "notes": [
        {
          "category": "description",
          "text": "When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "known_affected": [
          "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
          "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
          "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
          "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
          "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
          "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
          "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
          "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2021-22922"
        },
        {
          "category": "external",
          "summary": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/1213175",
          "url": "https://hackerone.com/reports/1213175"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E",
          "url": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E",
          "url": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E",
          "url": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E",
          "url": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/202212-01",
          "url": "https://security.gentoo.org/glsa/202212-01"
        },
        {
          "category": "external",
          "summary": "https://security.netapp.com/advisory/ntap-20210902-0003/",
          "url": "https://security.netapp.com/advisory/ntap-20210902-0003/"
        },
        {
          "category": "external",
          "summary": "https://www.oracle.com/security-alerts/cpuoct2021.html",
          "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
        }
      ],
      "release_date": "2021-08-05T21:15:00Z",
      "remediations": [
        {
          "category": "no_fix_planned",
          "date": "2026-06-12T13:07:15.475739Z",
          "details": "CVE-2021-22922 only triggers when curl is built with the optional libmetalink support and explicitly invoked with the --metalink option to process a Metalink XML; ordinary curl builds and standard URL downloads are unaffected. Even then, the flaw only leaves a mismatched file on disk after a failed hash check (no automatic code execution or privilege escalation), so harm requires a separate user/script action to execute or trust that file. Metalink is off by default at build time and was removed entirely starting in curl 7.78.0, further narrowing exposure in centrally managed server/VM environments.",
          "product_ids": [
            "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:curl-0:7.29.0-59.0.3.el7_9.2.x86_64",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.i686",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:libcurl-0:7.29.0-59.0.3.el7_9.2.x86_64",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.i686",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.i686",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.tuxcare.els2.x86_64",
            "Oracle-Linux-7:libcurl-devel-0:7.29.0-59.0.3.el7_9.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}