{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:shadowsocks:shadowsocks-libev:3.3.2:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "3.3.2"
              },
              {
                "last_affected": "3.3.2"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "346ab1be4717e26d641635d6f3ece14899688c49"
            },
            {
              "last_affected": "346ab1be4717e26d641635d6f3ece14899688c49"
            }
          ],
          "repo": "https://github.com/shadowsocks/shadowsocks-libev",
          "type": "GIT"
        }
      ],
      "versions": [
        "3.3.2"
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "sle-15-sp1"
          },
          {
            "last_affected": "sle-15-sp1"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "opensuse:backports"
      },
      {
        "cpes": [
          "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "15.1"
          },
          {
            "last_affected": "15.1"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "opensuse:leap"
      }
    ]
  },
  "details": "An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher and a local_address, arbitrary UDP packets can cause a FATAL error code path and exit. An attacker can send arbitrary UDP packets to trigger this vulnerability.",
  "id": "CVE-2019-5163",
  "modified": "2026-07-08T05:38:22.440739856Z",
  "published": "2019-12-03T22:15:15.370Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html"
    },
    {
      "type": "ADVISORY",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}