Tcpdump Boundary Checking Error in 'print-isakmp.c' Lets Remote Users Crash Tcpdump
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SecurityTracker Alert ID: 1009593 |
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SecurityTracker URL: http://securitytracker.com/id/1009593
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CVE Reference:
CAN-2004-0183, CAN-2004-0184
(Links to External Site)
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Updated: Mar 30 2004
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Original Entry Date: Mar 30 2004
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Version(s): prior to 3.8.2
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Description:
Two vulnerabilities were reported in tcpdump. A remote user can cause tcpdump to crash when in a certain configuration.
The tcpdump vendor reported that 'print-isakmp.c' does not properly validate user-supplied input in ISAKMP packets. A remote user can send a specially crafted packet to trigger the flaw.
Rapid7 subsequently issued an advisory [see the Message History] that provided additional details. The advisory indicated that the vulnerability applies only in the verbose packet display (-v) mode.
A remote user can send a specially crafted ISAKMP Delete payload with a large number of Security Protocol Identifiers (SPIs) to cause the tcpdump application to crash [CVE: CAN-2004-0183] due to a buffer overflow.
It is also reported that a remote user can send an ISAKMP Identification payload with a specially crafted payload length value that is less than 8 to cause tcpdump to crash [CVE: CAN-2004-0184].
The Rapid7 advisory provides additional details and is available at:
http://www.rapid7.com/advisories/R7-0017.html
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Impact:
A remote user can cause tcpdump to crash.
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Solution:
The vendor has released a fixed version (3.8.3), available at:
http://tcpdump.org/release/tcpdump-3.8.3.tar.gz
http://tcpdump.org/
[Editor's note: The vendor states that version 3.8.3 is identical to 3.8.2, but the version number was incremented to match the libpcap version number.]
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Vendor URL: tcpdump.org/tcpdump-changes.txt (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Tue, 30 Mar 2004 10:54:14 -0500
Subject: http://tcpdump.org/tcpdump-changes.txt
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http://tcpdump.org/tcpdump-changes.txt
> Mon. March 29, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.2 release
> Fixes for print-isakmp.c CVE: CAN-2004-0183, CAN-2004-0184
> http://www.rapid7.com/advisories/R7-0017.html
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