{
  "document": {
    "aggregate_severity": {
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      },
      {
        "category": "details",
        "text": "* SECURITY UPDATE: out-of-bounds memory access in the BPF interpreter\n     - debian/patches/CVE-2026-0799.patch: reject scratch memory\n       register indexes >= BPF_MEMWORDS in bpf_filter.c\n     - CVE-2026-0799",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
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    "references": [
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        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791816233",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791816233"
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        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/debian11els/advisories/2026/clsa-2026_1791816233.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-10-12T14:44:44Z",
      "generator": {
        "date": "2026-10-12T14:44:44Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1791816233",
      "initial_release_date": "2026-10-12T14:44:44Z",
      "revision_history": [
        {
          "date": "2026-10-12T14:44:44Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "Fix CVE(s): CVE-2026-0799"
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      "cve": "CVE-2026-0799",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "description",
          "text": "In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value.  In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.",
          "title": "Vulnerability description"
        }
      ],
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        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-0799"
        },
        {
          "category": "external",
          "summary": "https://github.com/the-tcpdump-group/libpcap/commit/48e8960a7108e9e828f9d7bdc7e97bdab841aec7",
          "url": "https://github.com/the-tcpdump-group/libpcap/commit/48e8960a7108e9e828f9d7bdc7e97bdab841aec7"
        }
      ],
      "release_date": "2026-09-05T19:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-12T14:43:54.695436Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791816233",
          "product_ids": [
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            "Debian-11:libpcap-dev-0:1.10.0-2+tuxcare.els1.arm64",
            "Debian-11:libpcap-dev-0:1.10.0-2+tuxcare.els1.armel",
            "Debian-11:libpcap0.8-0:1.10.0-2+tuxcare.els1.amd64",
            "Debian-11:libpcap0.8-0:1.10.0-2+tuxcare.els1.arm64",
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            "Debian-11:libpcap0.8-dev-0:1.10.0-2+tuxcare.els1.arm64",
            "Debian-11:libpcap0.8-dev-0:1.10.0-2+tuxcare.els1.armel"
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          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791816233"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
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    }
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}