RHSA-2003:032

Vulnerability from csaf_redhat - Published: 2003-04-23 14:55 - Updated: 2025-11-21 17:25
Summary
Red Hat Security Advisory: : Updated tcpdump packages fix various vulnerabilities

Notes

Topic
Updated tcpdump, libpcap, and arpwatch packages are available, fixing a number of vulnerabilities that could be used to cause a denial of service attack, or possibly execute arbitrary code.
Details
tcpdump is a command-line tool for monitoring network traffic. 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. 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.
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        "text": "Updated tcpdump, libpcap, and arpwatch packages are available, fixing\na number of vulnerabilities that could be used to cause a denial of service\nattack, or possibly execute arbitrary code.",
        "title": "Topic"
      },
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        "text": "tcpdump is a command-line tool for monitoring network traffic. \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\npacket to UDP port 500, causing tcpdump to enter an infinite loop.\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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        {
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}


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  • 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.