Security advisory

{
  "id": "5c0587b7b04ca68f797b0bdabc7cf2efcd82d66c52c41f089be2b3bd12271e40",
  "url": "https://osv.dev/vulnerability/CVE-2019-20387",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-20387",
    "summary": "repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.",
    "evidence": "osv:CVE-2019-20387",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-20387",
      "aliases": [
        "CVE-2019-20387"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/opensuse/libsolv",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "17ce4bc4fb52a0b32964f3b7d491c18177980be1"
                },
                {
                  "fixed": "fdb9c9c03508990e4583046b590c30d958f272da"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.7.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "fdb9c9c03508990e4583046b590c30d958f272da"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.7.5",
            "0.7.4",
            "0.7.3",
            "0.7.2",
            "0.7.1",
            "0.7.0",
            "0.6.35",
            "0.6.34",
            "0.6.33",
            "0.6.32",
            "0.6.31",
            "0.6.30",
            "0.6.29",
            "0.6.28",
            "0.6.27",
            "0.6.26",
            "0.6.25",
            "0.6.24",
            "0.6.23",
            "0.6.22",
            "0.6.21",
            "0.6.20",
            "0.6.19",
            "0.6.18",
            "0.6.17",
            "0.6.16",
            "0.6.15",
            "0.6.14",
            "0.6.13",
            "0.6.12",
            "0.6.11",
            "0.6.10",
            "0.6.9",
            "0.6.8",
            "0.6.7",
            "0.6.6",
            "0.6.5",
            "0.6.4",
            "BASE-SuSE-Code-13_1-Branch",
            "BASE-SuSE-Code-12_3-Branch",
            "BASE-SuSE-Code-12_2-Branch",
            "BASE-SuSE-Code-12_1-Branch"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20387.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-20387-14be743e",
                "digest": {
                  "length": 1697,
                  "function_hash": "4899277101288193706485005846420497178"
                },
                "source": "https://github.com/opensuse/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da",
                "target": {
                  "file": "src/repodata.c",
                  "function": "repodata_schema2id"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-20387-2b36464b",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "272047716795212802441097868574234895908",
                    "37400958923676777071933101271582289650",
                    "265341671384809898946922769719777125133",
                    "53443162342254653955672112058005017995",
                    "278243617184913516167546565061182609866",
                    "23330873008043240081292770275914080789",
                    "260254168737727559623885259626174947827"
                  ]
                },
                "source": "https://github.com/opensuse/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da",
                "target": {
                  "file": "src/repodata.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:56:54Z"
          }
        }
      ],
      "modified": "2026-10-20T13:56:54.938317775Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2020/01/msg00034.html",
        "https://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da",
        "https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-20387",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388438,
  "published_at": "2020-01-21T23:15:13.443+00:00"
}