misc/188434: Freeze attacks against freebsd-update

[David Noel]

>Number:         188434
>Category:       misc
>Synopsis:       Freeze attacks against freebsd-update
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 10 16:50:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     David Noel
>Release:        9.2
>Organization:
>Environment:
>Description:
freebsd-update is vulnerable to freeze attacks.
>How-To-Repeat:

>Fix:
Solution summary: the server-side inclusion of date-stamps, and strict client-side enforcement of expiration policies would mitigate this attack vector.

>Release-Note:
>Audit-Trail:
>Unformatted: