When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.Customers should upgrade to an appropriate release as indicated in the following table.In the table, the left column lists major releases of Cisco ASA Software.

The right column indicates whether a major release is
affected by the vulnerability described in this advisory and the first release that includes the fix for this vulnerability.Cisco ASA Major Release 

First Fixed Release 

Prior to 9.0
Affected. Migrate to 9.1(7.6) or later
9.0
Affected. Migrate to 9.1(7.6) or later
9.1 
9.1(7.6)
9.2 
9.2(4.8)
9.3 
9.3(3.8)
9.4 
9.4(2.6)
9.5
9.5(2.6)
9.6
Not affected