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        "url": "https://www.first.org/tlp/"
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    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A security hole has been found that does not affect the default\nconfiguration of Red Hat Linux, but it can affect some custom\nconfigurations of Red Hat Linux 7.1. The bug is specific\nto the Linux 2.4 kernel series. Aside from the fix, countless bugfixes\nhave been applied to this kernel as a result of code-audits by the\nMC project of the Stanford University and others.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "A vulnerability in iptables \"RELATED\" connection tracking has been\ndiscovered. When using iptables to allow FTP \"RELATED\" connections\nthrough the firewall, carefully constructed PORT commands can open\narbitrary holes in the firewall.\n\nDefault installations of Red Hat Linux 7.1 are not vulnerable; however\nupgrading to this kernel is recommended regardless in order to benefit from\nthe other bug fixes in this kernel.",
        "title": "Details"
      },
      {
        "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 Red Hat Inc. and provide a link to the original.",
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        "summary": "https://access.redhat.com/errata/RHSA-2001:084",
        "url": "https://access.redhat.com/errata/RHSA-2001:084"
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        "summary": "43940",
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      {
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2001/rhsa-2001_084.json"
      }
    ],
    "title": "Red Hat Security Advisory: Kernel",
    "tracking": {
      "current_release_date": "2025-11-21T17:24:41+00:00",
      "generator": {
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        }
      },
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      "initial_release_date": "2001-06-22T21:12:00+00:00",
      "revision_history": [
        {
          "date": "2001-06-22T21:12:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2001-06-21T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-11-21T17:24:41+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
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  },
  "product_tree": {
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            "branches": [
              {
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                "name": "Red Hat Linux 7.1",
                "product": {
                  "name": "Red Hat Linux 7.1",
                  "product_id": "Red Hat Linux 7.1",
                  "product_identification_helper": {
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        "name": "Red Hat"
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  "vulnerabilities": [
    {
      "cve": "CVE-2001-0405",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616583"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "ip_conntrack_ftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access restrictions for an FTP server via a PORT command that lists an arbitrary IP address and port number, which is added to the RELATED table and allowed by the firewall.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Linux 7.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2001-0405"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616583",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616583"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2001-0405",
          "url": "https://www.cve.org/CVERecord?id=CVE-2001-0405"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2001-0405",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2001-0405"
        }
      ],
      "release_date": "2001-04-16T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2001-06-22T21:12:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nThe procedure for upgrading the kernel is documented at:\n\nhttp://www.redhat.com/support/docs/howto/kernel-upgrade/kernel-upgrade.html\n\nPlease read the directions for your architecture carefully before\nproceeding with the kernel upgrade.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
          "product_ids": [
            "Red Hat Linux 7.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2001:084"
        }
      ],
      "threats": [
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          "details": "Important"
        }
      ],
      "title": "security flaw"
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