RHSA-2003_033

Vulnerability from csaf_redhat - Published: 2003-02-26 15:17 - Updated: 2024-11-21 22:37
Summary
Red Hat Security Advisory: tcpdump security update

Notes

Topic
Updated tcpdump, libpcap, and arpwatch packages are available to fix an incorrect bounds check when decoding BGP packets and a possible denial of service.
Details
Tcpdump is a command-line tool for monitoring network traffic. The BGP decoding routines in tcpdump before version 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). If a UDP packet from a radius port contains 0 at the second byte tcpdump gets stuck in a loop that generating an infinite stream of "#0#0#0#0#0". This could be used as a denial of service. Users of tcpdump are advised to upgrade to these errata packages which contain patches to correct thes 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.
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    "distribution": {
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    "notes": [
      {
        "category": "summary",
        "text": "Updated tcpdump, libpcap, and arpwatch packages are available to fix an\nincorrect bounds check when decoding BGP packets and a possible denial of\nservice.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Tcpdump is a command-line tool for monitoring network traffic. \n\nThe BGP decoding routines in tcpdump before version 3.6.2 used incorrect\nbounds checking when copying data, which allows remote attackers to cause a\ndenial of service and possibly execute arbitrary code (as the \u0027pcap\u0027 user).\n\nIf a UDP packet from a radius port contains 0 at the second byte tcpdump\ngets stuck in a loop that generating an infinite stream of \"#0#0#0#0#0\".\nThis could be used as a denial of service.\n\nUsers of tcpdump are advised to upgrade to these errata packages which\ncontain patches to correct thes issues.",
        "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.",
        "title": "Terms of Use"
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    "publisher": {
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      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
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    "title": "Red Hat Security Advisory: tcpdump security update",
    "tracking": {
      "current_release_date": "2024-11-21T22:37:44+00:00",
      "generator": {
        "date": "2024-11-21T22:37:44+00:00",
        "engine": {
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          "version": "4.2.1"
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      "id": "RHSA-2003:033",
      "initial_release_date": "2003-02-26T15:17:00+00:00",
      "revision_history": [
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          "date": "2003-02-26T15:17:00+00:00",
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      "status": "final",
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  "product_tree": {
    "branches": [
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                "name": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
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                  "product_identification_helper": {
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              },
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  "vulnerabilities": [
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      "ids": [
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          "text": "1616882"
        }
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      "notes": [
        {
          "category": "description",
          "text": "The BGP decoding routines in tcpdump 3.6.x before 3.7 do not properly copy data, which allows remote attackers to cause a denial of service (application crash).",
          "title": "Vulnerability description"
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        {
          "category": "summary",
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-1350",
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        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-1350",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-1350"
        }
      ],
      "release_date": "2001-10-15T00:00:00+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2003-02-26T15:17:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\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": [
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            "Red Hat Linux Advanced Workstation 2.1"
          ],
          "restart_required": {
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          "url": "https://access.redhat.com/errata/RHSA-2003:033"
        }
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      "title": "security flaw"
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          "system_name": "Red Hat Bugzilla ID",
          "text": "1616965"
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      ],
      "notes": [
        {
          "category": "description",
          "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.",
          "title": "Vulnerability description"
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          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0093"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0093",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0093"
        }
      ],
      "release_date": "2003-01-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-02-26T15:17:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\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": [
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          "url": "https://access.redhat.com/errata/RHSA-2003:033"
        }
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      "title": "security flaw"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.