Cisco ASA SIP and WebVPN Bugs Let Remote Users Deny Service
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SecurityTracker Alert ID: 1027355 |
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SecurityTracker URL: http://securitytracker.com/id/1027355
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CVE Reference:
CVE-2012-2472, CVE-2012-2474
(Links to External Site)
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Date: Aug 7 2012
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): ASA 5500 Series; 8.2 - 8.4
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Description:
Two vulnerabilities were reported in Cisco ASA. A remote or remote authenticated user can cause denial of service conditions.
On systems with SIP inspection enabled, a remote user can send specially crafted SIP traffic to cause the target device to create many identical pre-allocated secondary pinholes and cause excessive CPU consumption [CVE-2012-2472]. Cisco has assigned Bug ID CSCtz63143 to this vulnerability.
A remote authenticated user can exploit a flaw in the clientless WebVPN feature to consume excessive memory on the target system [CVE-2012-2474]. Cisco has assigned Bug ID CSCth34278 to this vulnerability.
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Impact:
A remote user can cause excessive memory consumption on the target system.
A remote authenticated user can cause excessive CPU consumption on the target system.
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Solution:
The vendor has issued a fix.
The vendor's advisories are available at:
http://www.cisco.com/en/US/docs/security/asa/asa84/release/notes/asarn84.html
http://www.cisco.com/web/software/280775065/45357/ASA-825-Interim-Release-Notes.html
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Vendor URL: www.cisco.com/ (Links to External Site)
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Cause:
Resource error
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Underlying OS:
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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