{
  "cveId": "CVE-2023-35945",
  "url": "https://patchblox.com/security/cve/CVE-2023-35945",
  "summary": "CVE-2023-35945 is fixed in 17 products on 1 platform, first by ALAS2023-2023-278, released August 3, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "nghttp2-debugsource: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities:\nCVE-2023-35945:\n\tEnvoy is...",
  "description": "Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities:\nCVE-2023-35945:\n\tEnvoy is a cloud-native high-performance edge/middle/service proxy. Envoy\u0027s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving \u0060RST_STREAM\u0060 immediately followed by the \u0060GOAWAY\u0060 frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the \u0060GOAWAY\u0060 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 \u0060GOAWAY\u0060 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.",
  "published": "2023-08-03T20:26:00Z",
  "severity": "important",
  "epss": 0.01652,
  "epssPercentile": 0.767,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ecs-service-connect-agent",
      "release": "amzn 2023",
      "fixedVersion": "v1.26.4.0-1.amzn2023",
      "fix": "ALAS2023-2023-300",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-300",
      "released": "2023-08-17T11:20:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "libnghttp2-devel",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nghttp2-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1.55.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2023-278",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-278",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-libs",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-libs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:18.12.1-1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "amzn 2023",
      "fixedVersion": "1:8.19.2-1.18.12.1.1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    },
    {
      "platform": "linux",
      "product": "v8-devel",
      "release": "amzn 2023",
      "fixedVersion": "2:10.2.154.15-1.18.12.1.1.amzn2023.0.9",
      "fix": "ALAS2023-2023-290",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-290",
      "released": "2023-08-03T20:26:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}