Junos GNU libc GLOB_LIMIT DoS Vulnerability

Summary
Remote authenticated users can cause a partial denial of service via crafted glob expressions.
Impact
Attacks against Junos OS with FTP services enabled can cause a partial DoS.
Solution
New builds of Junos OS software are available from Juniper. As a workaround ACLs or firewall filters to limit FTP access to the router only from trusted hosts.
Insight
The glob implementation in libc allows authenticated remote users to cause a denial of service via crafted glob expressions that do not match any pathnames.
Affected
Plattforms running Junos OS 10.4, 11.4, 12.1, 12.2, 12.3, 13.1.
Detection
Check the OS build.
References