// For flags

CVE-2003-1029

Tcpdump 3.x - L2TP Parser Remote Denial of Service

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

El procesador (parser) del protocolo L2TP en tcpdump 3.8.1 y anteriores permite a atacantes remotos causar una denegación de servicio (bucle infinito y consumición de memoria) mediante un paquete con datos no válidos al puerto UDP 1701, lo que causa que l2tp_avp_print ustilice un valor de longitud malo cuando llama a print_octets()

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2003-12-20 First Exploit
  • 2004-01-14 CVE Reserved
  • 2004-01-15 CVE Published
  • 2024-08-08 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Lbl
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Tcpdump
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3.4
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-
Affected
Lbl
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Tcpdump
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3.5
Search vendor "Lbl" for product "Tcpdump" and version "3.5"
-
Affected
Lbl
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Tcpdump
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3.5.2
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-
Affected
Lbl
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Tcpdump
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3.6.2
Search vendor "Lbl" for product "Tcpdump" and version "3.6.2"
-
Affected
Lbl
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Tcpdump
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3.6.3
Search vendor "Lbl" for product "Tcpdump" and version "3.6.3"
-
Affected
Lbl
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Tcpdump
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3.7
Search vendor "Lbl" for product "Tcpdump" and version "3.7"
-
Affected