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Category:   Device (Firewall)  >   Cisco ASA Vendors:   Cisco
Cisco ASA DNS Response Packet Processing Bug Lets Remote Users Cause the Target System to Reload
SecurityTracker Alert ID:  1033913
SecurityTracker URL:  http://securitytracker.com/id/1033913
CVE Reference:   CVE-2015-6325   (Links to External Site)
Date:  Oct 21 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.2(1)
Description:   A vulnerability was reported in Cisco ASA. A remote user can cause the target system to reload.

A remote user can return a specially crafted DNS response packet to the target device to cause the target device to reload.

Systems configured in routed or transparent firewall mode and single or multiple context mode are affected.

Systems with at least one DNS server IP address configured under a DNS server group are affected.

The vendor has assigned bug ID CSCut03495 to this vulnerability.

Impact:   A remote user can cause the target system to reload.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-asa-dns1

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-asa-dns1 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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