Current Description

tcpdump, Ethereal, and other sniffer packages allow remote attackers to cause a denial of service via malformed DNS packets in which a jump offset refers to itself, which causes tcpdump to enter an infinite loop while decompressing the packet.

Basic Data

PublishedMay 31, 1999
Last ModifiedSeptember 10, 2008
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score5.0
Exploitability Score10.0
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.


  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationEthereal GroupEthereal0.8.4*******
    2.3ApplicationEthereal GroupEthereal0.8.5*******
    2.3ApplicationEthereal GroupEthereal0.8.6*******

Vulnerable Software List

Lbl Tcpdump 3.4, 3.5a
Ethereal Group Ethereal 0.8.4, 0.8.5, 0.8.6


1165 PATCH Vendor Advisory
20000502 Denial of service attack against tcpdump Vendor Advisory