{
  "schema_version": "1.4.0",
  "id": "GHSA-hqqc-jr88-p6x2",
  "modified": "2025-03-31T21:47:21Z",
  "published": "2025-03-31T21:47:20Z",
  "aliases": [
    "CVE-2025-29908"
  ],
  "summary": "Netty QUIC hash collision DoS attack",
  "details": "An issue was discovered in the codec. A hash collision vulnerability (in the hash map used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).\n\nSee https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty.incubator:netty-incubator-codec-quic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.71.Final"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty-incubator-codec-quic/security/advisories/GHSA-hqqc-jr88-p6x2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29908"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty-incubator-codec-quic/commit/e059bd9b78723f8b035e0c547e42ce263f03461c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty-incubator-codec-quic"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-407"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-31T21:47:20Z",
    "nvd_published_at": "2025-03-31T19:15:40Z"
  }
}