5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.933 High
EPSS
Percentile
99.1%
Ethereal fails to properly parse v9_template structures in NetFlow UDP packets with an overly large template_entry count. This could allow an attacker to execute arbitrary code.
Ethereal is a network traffic analysis package. It includes the ability to decode packets containing NetFlow data. There is a buffer overflow vulnerability in the way the NetFlow v9 dissector parses v9_template structures in a NetFlow UDP packet. A remote, unauthenticated attacker could exploit this vulnerability by sending a NetFlow UDP packet containing an overly large template_entry count which could allow for arbitrary code execution.
A remote, unauthenticated attacker could execute arbitrary code on the vulnerable system.
Upgrade
Upgrade to version 0.10.3 or later.
Note: Ethereal is considered BETA software at this time.
Disable Dissector
If you are unable to upgrade to version 0.10.3 or later, you can disable the NetFlow protocol dissector by performing the following actions in Ethereal:
(for Ethereal versions 0.9.x)
(for Ethereal versions 0.10.x)
However, it is strongly encouraged to upgrade to version 0.10.3 or later.
644886
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Updated: March 24, 2004
Affected
Please see the Ethereal Security Bulletin at <http://www.ethereal.com/appnotes/enpa-sa-00013.html>.
The vendor has not provided us with any further information regarding this vulnerability.
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23644886 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Ethereal credits Stefan Esser for reporting this vulnerability.
This document was written by Damon Morda.
CVE IDs: | CVE-2004-0176 |
---|---|
Severity Metric: | 9.82 Date Public: |