Symantec Firewall/VPN Appliance IPSec IKE Processing Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1015249
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SecurityTracker URL: http://securitytracker.com/id?1015249
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Nov 22 2005
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Impact: Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: Symantec Advisory
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Version(s): 100, 200/200R
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Description: A vulnerability was reported in Symantec Firewall/VPN Appliance. A remote user can cause denial of service conditions.
The device does not properly validate Internet Key Exchange (IKE) packets. A remote user can send specially crafted ISAKMP packets
to trigger a buffer overflow and cause the ISAKMP daemon to crash. This will cause the dynamic VPN services to become unavailable.
A
test suite developed by the University of Oulu Secure Programming Group (OUSPG) was used to discover these vulnerabilities.
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Impact: A remote user can cause denial of service conditions.
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Solution: The vendor has issued a patch (Build 1.8F), available at:
http://www.symantec.com/techsupp/enterprise/select_product_updates.html
The
vendor's advisory is available at:
http://securityresponse.symantec.com/avcenter/security/Content/2005.11.21.html
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Vendor URL: securityresponse.symantec.com/avcenter/security/Content/2005.11.21.html (Links to External Site)
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Cause: Boundary error, Exception handling error
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Message History:
None.
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Source Message Contents
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Date: Mon, 21 Nov 2005 20:24:51 -0500
Subject: Symantec Dynamic VPN Services: ISAKMP Denial of Service
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http://securityresponse.symantec.com/avcenter/security/Content/2005.11.21.html
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