netty — security advisory

{
  "id": "d13903618a3910e5e675b082add0e0d2f1da823355a2953e5f196fef0b4a8e14",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-58057",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2025-58057",
    "summary": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression.",
    "evidence": "osv:DEBIAN-CVE-2025-58057",
    "products": [
      {
        "name": {
          "value": "netty",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:4.1.48-7+deb12u2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:4.1.48-7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:4.1.48-7+deb12u1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netty",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:4.1.48-10+deb13u1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:4.1.48-10",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netty",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:4.1.48-12",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:4.1.48-10",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:4.1.48-11",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2025-58057",
      "aliases": [
        "DEBIAN-CVE-2025-58057"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:4.1.48-7+deb12u2"
                }
              ]
            }
          ],
          "package": {
            "name": "netty",
            "purl": "pkg:deb/debian/netty?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1:4.1.48-7",
            "1:4.1.48-7+deb12u1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-58057.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:4.1.48-10+deb13u1"
                }
              ]
            }
          ],
          "package": {
            "name": "netty",
            "purl": "pkg:deb/debian/netty?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1:4.1.48-10"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-58057.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:4.1.48-12"
                }
              ]
            }
          ],
          "package": {
            "name": "netty",
            "purl": "pkg:deb/debian/netty?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1:4.1.48-10",
            "1:4.1.48-11"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-58057.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T17:47:38.581065873Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-58057"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2025-58057"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-58057",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 418094,
  "published_at": "2025-09-04T10:42:32.18+00:00"
}