ubuntu-cve-2017-1000420
Vulnerability from osv_ubuntu
Published
2018-01-02 19:29
Modified
2025-07-17 16:53
Summary
Details

Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-syncthing-syncthing-dev",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing-dbgsym",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing-discosrv",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing-discosrv-dbgsym",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing-relaysrv",
            "binary_version": "0.14.43+ds1-6"
          },
          {
            "binary_name": "syncthing-relaysrv-dbgsym",
            "binary_version": "0.14.43+ds1-6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "syncthing",
        "purl": "pkg:deb/ubuntu/syncthing@0.14.43+ds1-6?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.14.43+ds1-6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.14.36+ds1-1",
        "0.14.38+ds1-1",
        "0.14.43+ds1-5"
      ]
    }
  ],
  "aliases": [],
  "details": "Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite",
  "id": "UBUNTU-CVE-2017-1000420",
  "modified": "2025-07-17T16:53:42Z",
  "published": "2018-01-02T19:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-1000420"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/syncthing/syncthing/issues/4286"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-1000420"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-1000420"
  ],
  "withdrawn": "2025-07-18T16:44:21Z"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • 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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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.