Security advisory

{
  "id": "51fc006e5573436eb8302fc603aefaf6c62f9f1547113cce6b8b82a52fdff086",
  "url": "https://osv.dev/vulnerability/CVE-2016-8688",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-8688",
    "summary": "The mtree bidder in libarchive 3.2.1 does not keep track of line sizes when extending the read-ahead, which allows remote attackers to cause a denial of service (crash) via a crafted file, which triggers an invalid read in the (1) detect_form or (2) bid_entry function in libarchive/archive_read_support_format_mtree.c.",
    "evidence": "osv:CVE-2016-8688",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-8688",
      "aliases": [
        "CVE-2016-8688"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libarchive/libarchive",
              "type": "GIT",
              "events": [
                {
                  "introduced": "139d0576b51a253732a5ab1f66805dffbf8b00af"
                },
                {
                  "last_affected": "139d0576b51a253732a5ab1f66805dffbf8b00af"
                },
                {
                  "fixed": "eec077f52bfa2d3f7103b4b74d52572ba8a15aca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libarchive:libarchive:3.2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.2.1"
                      },
                      {
                        "last_affected": "3.2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "eec077f52bfa2d3f7103b4b74d52572ba8a15aca"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.2.1",
            "v3.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-8688.json",
            "vanir_signatures": [
              {
                "id": "CVE-2016-8688-32674c9e",
                "digest": {
                  "length": 769,
                  "function_hash": "223740311993473210139103012324376062846"
                },
                "source": "https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca",
                "target": {
                  "file": "libarchive/archive_read_support_format_mtree.c",
                  "function": "next_line"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2016-8688-b0001ac3",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "49533266774681543131039842645057671075",
                    "321939831539605999812602556020703905102",
                    "86327894471780845113511688328954627230",
                    "195140934946345616962134847248004045130",
                    "216781037651015841101945166112837526521",
                    "108166397868030482561271342092105106413",
                    "188419350599359671913867752680796738459"
                  ]
                },
                "source": "https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca",
                "target": {
                  "file": "libarchive/archive_read_support_format_mtree.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:22:47Z"
          }
        }
      ],
      "modified": "2026-10-20T13:22:47.381514757Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html",
        "https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-bid_entry-archive_read_support_format_mtree-c/",
        "https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-detect_form-archive_read_support_format_mtree-c/",
        "https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknown-crash-in-bid_entry-archive_read_support_format_mtree-c/",
        "https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_entry-archive_read_support_format_mtree-c/",
        "https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detect_form-archive_read_support_format_mtree-c/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1377923",
        "https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca",
        "https://security.gentoo.org/glsa/201701-03"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "42.2"
                  },
                  {
                    "last_affected": "42.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-8688",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387594,
  "published_at": "2017-02-15T19:59:00.643+00:00"
}