GSD-2020-12278

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.
Aliases
Aliases
CVE-2020-12278
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-12278",
    "description": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.",
    "id": "GSD-2020-12278"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-12278"
      ],
      "details": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.",
      "id": "GSD-2020-12278",
      "modified": "2023-12-13T01:21:49.720036Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-12278",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
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      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352."
          }
        ]
      },
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj",
            "refsource": "MISC",
            "url": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj"
          },
          {
            "name": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0"
          },
          {
            "name": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4"
          },
          {
            "name": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01"
          },
          {
            "name": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb"
          },
          {
            "name": "[debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"
          },
          {
            "name": "[debian-lts-announce] 20230223 [SECURITY] [DLA 3340-1] libgit2 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.28.4",
          "affected_versions": "All versions before 0.28.4",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-07-21",
          "description": "An issue was discovered in libgit2. `path.c` mishandles equivalent filenames that exist because of NTFS Alternate Data Streams.",
          "fixed_versions": [
            "0.28.4"
          ],
          "identifier": "CVE-2020-12278",
          "identifiers": [
            "CVE-2020-12278",
            "GHSA-5wph-8frv-58vj"
          ],
          "not_impacted": "All versions starting from 0.28.4",
          "package_slug": "conan/libgit2",
          "pubdate": "2020-04-27",
          "solution": "Upgrade to version 0.28.4 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-12278"
          ],
          "uuid": "53289b41-14b3-41fb-aabf-fd3f5a768aa0"
        },
        {
          "affected_range": "\u003c0.28.4",
          "affected_versions": "All versions before 0.28.4",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-07-21",
          "description": "An issue was discovered in libgit2, which is used by rugged gem: `path.c` mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository.",
          "fixed_versions": [
            "0.28.4"
          ],
          "identifier": "CVE-2020-12278",
          "identifiers": [
            "CVE-2020-12278",
            "GHSA-5wph-8frv-58vj"
          ],
          "not_impacted": "All versions starting from 0.28.4",
          "package_slug": "gem/rugged",
          "pubdate": "2020-04-27",
          "solution": "Upgrade to version 0.28.4 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-12278"
          ],
          "uuid": "1c3ac112-b820-4d86-9970-65a410f634d2"
        },
        {
          "affected_range": "\u003c1.1.0",
          "affected_versions": "All versions before 1.1.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-07-21",
          "description": "An issue was discovered in libgit2, which is used by pygit2 package: `path.c` mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository.",
          "fixed_versions": [
            "1.1.0"
          ],
          "identifier": "CVE-2020-12278",
          "identifiers": [
            "CVE-2020-12278",
            "GHSA-5wph-8frv-58vj"
          ],
          "not_impacted": "All versions starting from 1.1.0",
          "package_slug": "pypi/pygit2",
          "pubdate": "2020-04-27",
          "solution": "Upgrade to version 1.1.0 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-12278"
          ],
          "uuid": "2121560f-e070-4174-a3fa-bd240f54e14b"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.28.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
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      "cve": {
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        "description": {
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              "value": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352."
            }
          ]
        },
        "problemtype": {
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            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-706"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4",
              "refsource": "MISC",
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                "Third Party Advisory"
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              "url": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4"
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              "name": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0",
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              "url": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0"
            },
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              "name": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb",
              "refsource": "MISC",
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              "url": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb"
            },
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              "name": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj",
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              "tags": [
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              ],
              "url": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj"
            },
            {
              "name": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01",
              "refsource": "MISC",
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              "url": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01"
            },
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2023-02-24T00:15Z",
      "publishedDate": "2020-04-27T17:15Z"
    }
  }
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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