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Last updated: 12/22/2014 5:01:17 AM

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Vulnerability Summary for CVE-2003-1029

Original release date: 02/17/2004
Last revised: 02/20/2009


The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: BUGTRAQ
Name: 20040119 [ESA-20040119-002] 'tcpdump' multiple vulnerabilities.
External Source: MANDRAKE
Name: MDKSA-2004:008
External Source: BUGTRAQ
Name: 20031221 Re: Remote crash in tcpdump from OpenBSD
Type: Advisory
External Source: BUGTRAQ
Name: 20031220 Remote crash in tcpdump from OpenBSD
Type: Advisory; Exploit
External Source: DEBIAN
Name: DSA-425
Type: Advisory; Patch Information
External Source: ENGARDE
Name: ESA-20040119-002
External Source: SECUNIA
Name: 10668
External Source: SECUNIA
Name: 10718
External Source: SECUNIA
Name: 10636
External Source: SECUNIA
Name: 10652
External Source: MLIST
Name: [tcpdump-workers] 20031224 Seg fault of tcpdump (v 3.8.1 and below) with malformed l2tp packets
External Source: SECTRACK
Name: 1008748

Technical Details

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