LowFix available

libtoxcore — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-25022

The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address (when knowing only their Tox Id) by positioning themselves close to target's Tox Id in the DHT for the target to establish an onion connection with the attacker, guessing the target's DHT public key and creating a DHT node with public key close to it, and finally onion-routing a NAT Ping Request to the target, requesting it to ping the just created DHT node.

Products: libtoxcore
Affected versions: Not specified
Fixed versions: 0.2.2-1
CVEs: CVE-2018-25022
Confirmed fixed CVEs: Not specified
Updated in this feed: 1 Nov 2026, 00:29 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-25022

core-osv · Original source

Published 13 Dec 2021, 01:15 UTC

osv:DEBIAN-CVE-2018-25022

libtoxcore

Fixed versions: 0.2.2-1

libtoxcore

Fixed versions: 0.2.2-1

libtoxcore

Fixed versions: 0.2.2-1

Complete source record

{
  "id": "62ca2b879b7d189b1b6cd21c15c058a8af4057f308b18b557edc425c04a6ed4a",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-25022",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-25022",
    "summary": "The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address (when knowing only their Tox Id) by positioning themselves close to target's Tox Id in the DHT for the target to establish an onion connection with the attacker, guessing the target's DHT public key and creating a DHT node with public key close to it, and finally onion-routing a NAT Ping Request to the target, requesting it to ping the just created DHT node.",
    "evidence": "osv:DEBIAN-CVE-2018-25022",
    "products": [
      {
        "name": {
          "value": "libtoxcore",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.2.2-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libtoxcore",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.2.2-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libtoxcore",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.2.2-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "DEBIAN-CVE-2018-25022",
      "aliases": [
        "DEBIAN-CVE-2018-25022"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libtoxcore",
            "purl": "pkg:deb/debian/libtoxcore?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-25022.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libtoxcore",
            "purl": "pkg:deb/debian/libtoxcore?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-25022.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libtoxcore",
            "purl": "pkg:deb/debian/libtoxcore?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-25022.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:03:21.234497587Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-25022"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-25022"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-25022",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 421259,
  "published_at": "2021-12-13T01:15:07.587+00:00"
}