Security advisory

{
  "id": "dd6b552a5a698dc55ef387919847792a44c741e4544b7397ac5ab6139c67dc7d",
  "url": "https://osv.dev/vulnerability/CVE-2019-5152",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-5152",
    "summary": "An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.",
    "evidence": "osv:CVE-2019-5152",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-5152",
      "aliases": [
        "CVE-2019-5152"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/shadowsocks/shadowsocks-c",
              "type": "GIT",
              "events": [
                {
                  "introduced": "346ab1be4717e26d641635d6f3ece14899688c49"
                },
                {
                  "last_affected": "346ab1be4717e26d641635d6f3ece14899688c49"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:shadowsocks:shadowsocks-libev:3.3.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.2"
                      },
                      {
                        "last_affected": "3.3.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.2",
            "v3.3.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5152.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.906661Z",
      "provider": "osv",
      "references": [
        "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0942"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-5152",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430372,
  "published_at": "2019-12-18T15:15:11.333+00:00"
}