rhsa-2003_214
Vulnerability from csaf_redhat
Published
2003-06-30 16:10
Modified
2024-11-21 22:45
Summary
Red Hat Security Advisory: : : : Updated tcpdump packages fix various vulnerabilities

Notes

Topic
Updated tcpdump, libpcap, and arpwatch packages for iSeries and pSeries fix various vulnerabilities.
Details
Tcpdump is a command-line tool for monitoring network traffic. The Red Hat tcpdump packages advertise that by default tcpdump will drop permissions to user 'pcap'. Due to a compilation error this did not happen, and tcpdump would run as root unless the '-U' flag was specified. Users of tcpdump are advised to upgrade to these errata packages, which are compiled so that by default tcpdump will drop privileges to the 'pcap' user. The BGP decoding routines in tcpdump before 3.6.2 used incorrect bounds checking when copying data, which allows remote attackers to cause a denial of service and possibly execute arbitrary code (as the 'pcap' user). The RADIUS decoder in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service (crash) via an invalid RADIUS packet with a header length field of 0. This causes tcpdump to generate data within an infinite loop. A vulnerability in tcpdump before 3.7.2 is related to an inability to handle unknown RADIUS attributes properly, and allows remote attackers to cause a denial of service (infinite loop). The ISAKMP parser in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a malformed ISAKMP packet to UDP port 500, causing tcpdump to enter an infinite loop. Versions of tcpdump up to and including 3.6.2 have a buffer overflow that can be triggered when tracing the network by a bad NFS packet. This issue was found by David Woodhouse of Red Hat. Users of tcpdump are advised to upgrade to these errata packages, which contain patches to correct these issues.
Terms of Use
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.


To clipboard 

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    "notes": [
      {
        "category": "summary",
        "text": "Updated tcpdump, libpcap, and arpwatch packages for iSeries and pSeries fix\nvarious vulnerabilities.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Tcpdump is a command-line tool for monitoring network traffic. \n\nThe Red Hat tcpdump packages advertise that by default tcpdump will drop\npermissions to user \u0027pcap\u0027.  Due to a compilation error this did not\nhappen, and tcpdump would run as root unless the \u0027-U\u0027 flag was specified.\n\nUsers of tcpdump are advised to upgrade to these errata packages, which\nare compiled so that by default tcpdump will drop privileges to the\n\u0027pcap\u0027 user.\n\nThe BGP decoding routines in tcpdump before 3.6.2 used incorrect bounds\nchecking when copying data, which allows remote attackers to cause a denial\nof service and possibly execute arbitrary code (as the \u0027pcap\u0027 user).\n\nThe RADIUS decoder in tcpdump 3.6.2 and earlier allows remote attackers to\ncause a denial of service (crash) via an invalid RADIUS packet with a\nheader length field of 0. This causes tcpdump to generate data within an\ninfinite loop.\n\nA vulnerability in tcpdump before 3.7.2 is related to an inability to\nhandle unknown RADIUS attributes properly, and allows remote attackers to\ncause a denial of service (infinite loop).\n\nThe ISAKMP parser in tcpdump 3.6 through 3.7.1 allows remote attackers to\ncause a denial of service (CPU consumption) via a malformed ISAKMP packet\nto UDP port 500, causing tcpdump to enter an infinite loop.\n\nVersions of tcpdump up to and including 3.6.2 have a buffer overflow that\ncan be triggered when tracing the network by a bad NFS packet. This issue\nwas found by David Woodhouse of Red Hat.\n\nUsers of tcpdump are advised to upgrade to these errata packages, which\ncontain patches to correct these issues.",
        "title": "Details"
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        "title": "Terms of Use"
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    ],
    "title": "Red Hat Security Advisory: : : : Updated tcpdump packages fix various vulnerabilities",
    "tracking": {
      "current_release_date": "2024-11-21T22:45:00+00:00",
      "generator": {
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      "id": "RHSA-2003:214",
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      "revision_history": [
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        {
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        },
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          "restart_required": {
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      "threats": [
        {
          "category": "impact",
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          "text": "The RADIUS decoder in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service (crash) via an invalid RADIUS packet with a header length field of 0, which causes tcpdump to generate data within an infinite loop.",
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          "text": "isakmp_sub_print in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a certain malformed ISAKMP packet to UDP port 500, which causes tcpdump to enter an infinite loop.",
          "title": "Vulnerability description"
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0108"
        }
      ],
      "release_date": "2003-02-27T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-06-30T16:10:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch 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.",
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          "text": "1616984"
        }
      ],
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          "text": "Unknown vulnerability in tcpdump before 3.7.2 related to an inability to \"Handle unknown RADIUS attributes properly,\" allows remote attackers to cause a denial of service (infinite loop), a different vulnerability than CAN-2003-0093.",
          "title": "Vulnerability description"
        },
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0145"
        }
      ],
      "release_date": "2003-02-25T00:00:00+00:00",
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        {
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          "date": "2003-06-30T16:10:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch 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.",
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        }
      ],
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          "details": "Moderate"
        }
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616999"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "tcpdump does not properly drop privileges to the pcap user when starting up.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0194"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616999",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616999"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0194",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0194"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0194",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0194"
        }
      ],
      "release_date": "2003-05-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-06-30T16:10:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch 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-2003:214"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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