nghttp2 — security advisory

{
  "id": "81b395dec32a3fb8f625d8a31e1fd7207b82a3506c3d739f3a8c5e23922823fc",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2023-35945",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2023-35945",
    "summary": "Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.",
    "evidence": "osv:ALPINE-CVE-2023-35945",
    "products": [
      {
        "name": {
          "value": "nghttp2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.46.0-r1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nghttp2",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.47.0-r1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nghttp2",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.51.0-r1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "ALPINE-CVE-2023-35945",
      "aliases": [
        "ALPINE-CVE-2023-35945"
      ],
      "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": "1.46.0-r1"
                }
              ]
            }
          ],
          "package": {
            "name": "nghttp2",
            "purl": "pkg:apk/alpine/nghttp2?arch=source",
            "ecosystem": "Alpine:v3.15"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-35945.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.47.0-r1"
                }
              ]
            }
          ],
          "package": {
            "name": "nghttp2",
            "purl": "pkg:apk/alpine/nghttp2?arch=source",
            "ecosystem": "Alpine:v3.16"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-35945.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.51.0-r1"
                }
              ]
            }
          ],
          "package": {
            "name": "nghttp2",
            "purl": "pkg:apk/alpine/nghttp2?arch=source",
            "ecosystem": "Alpine:v3.17"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-35945.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-26T17:17:58.628977724Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-35945"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2023-35945"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-35945",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 454452,
  "published_at": "2023-07-13T21:15:08.88+00:00"
}