Jidaw Systems
(MASTERCOMPUTERS)


Flaws found in Cisco IOS

Cisco Systems has warned of several flaws in its IOS software. It stresses that the vulnerabilities could let attackers bring down routers in enterprise and service provider networks.  

Two of the flaws allow an attacker to continuously engage in a denial-of-service attack on routers. Another flaw could repeatedly make a router offline. Already Cisco has updated software available to fix the IOS bugs. 

The software bugs are related to Border Gateway Protocol (BGP), Multi Protocol Label Switching (MPLS) and IPv6. These IOS vulnerabilities are coming just after an IOS flaw affecting Cisco access routers configured to support IP telephony and VoIP services was reported.

The affected IOS release trains are 12.1T, 12.2, 12.2T, 12.3 and 12.3T. These release trains must be installed on these products:
-- 2600 and 2800 routers 
-- 3600, 3700 and 3800 routers 
-- 4500 and 4700 routers 
-- 5300, 5350 and 5400 series Access Servers 

For more information on Cisco vulnerabilities and action that can be taken to avoid loss or damage, please click here:
http://www.cisco.com/en/US/products/products_security_advisories_listing.html

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