gsd-2019-15796
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Python-apt doesn't check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn't be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2019-15796",
    "description": "Python-apt doesn\u0027t check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn\u0027t be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
    "id": "GSD-2019-15796",
    "references": [
      "https://www.debian.org/security/2020/dsa-4609",
      "https://ubuntu.com/security/CVE-2019-15796"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-15796"
      ],
      "details": "Python-apt doesn\u0027t check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn\u0027t be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
      "id": "GSD-2019-15796",
      "modified": "2023-12-13T01:23:38.581109Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "AKA": "",
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2019-12-12T17:47:00.000Z",
        "ID": "CVE-2019-15796",
        "STATE": "PUBLIC",
        "TITLE": "python-apt downloads from untrusted sources"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Python-apt",
                    "version": {
                      "version_data": [
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "0.8.3",
                          "version_value": "0.8.3ubuntu7.5"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "0.9.3.5",
                          "version_value": "0.9.3.5ubuntu3+esm2"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.1.0",
                          "version_value": "1.1.0~beta1ubuntu0.16.04.7"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.6.5",
                          "version_value": "1.6.5ubuntu0.1"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.9.0",
                          "version_value": "1.9.0ubuntu1.2"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.9.5",
                          "version_value": "1.9.5"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Canonical"
            }
          ]
        }
      },
      "configuration": [],
      "credit": [
        {
          "lang": "eng",
          "value": "Julian Andres Klode"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Python-apt doesn\u0027t check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn\u0027t be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5."
          }
        ]
      },
      "exploit": [],
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-287 Improper Authentication"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4247-1/"
          },
          {
            "name": "",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4247-3/"
          }
        ]
      },
      "solution": [],
      "source": {
        "advisory": "https://usn.ubuntu.com/4247-1/",
        "defect": [
          "https://bugs.launchpad.net/bugs/1858973"
        ],
        "discovery": "UNKNOWN"
      },
      "work_around": []
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=1.9.3ubuntu2",
          "affected_versions": "All versions up to 1.9.3ubuntu2",
          "cvss_v2": "AV:N/AC:H/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-347",
            "CWE-937"
          ],
          "date": "2023-07-18",
          "description": "Python-apt does not check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn\u0027t be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.",
          "fixed_versions": [
            "1.9.5"
          ],
          "identifier": "CVE-2019-15796",
          "identifiers": [
            "GHSA-pj65-3pf6-c5q4",
            "CVE-2019-15796"
          ],
          "not_impacted": "All versions after 1.9.3ubuntu2",
          "package_slug": "pypi/python-apt",
          "pubdate": "2022-05-24",
          "solution": "Upgrade to version 1.9.5 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-15796",
            "https://usn.ubuntu.com/4247-1/",
            "https://usn.ubuntu.com/4247-3/",
            "https://github.com/advisories/GHSA-pj65-3pf6-c5q4"
          ],
          "uuid": "58d9d5ac-37b6-4038-a006-2b970d48a8b9"
        }
      ]
    },
    "nvd.nist.gov": {
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                "operator": "OR"
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                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
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            "cpe_match": [],
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      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@ubuntu.com",
          "ID": "CVE-2019-15796"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Python-apt doesn\u0027t check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn\u0027t be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-347"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "UBUNTU",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/4247-1/"
            },
            {
              "name": "N/A",
              "refsource": "UBUNTU",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/4247-3/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.6,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2020-10-19T19:38Z",
      "publishedDate": "2020-03-26T13:15Z"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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