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Junos PIM Join Flooding Denial of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
JunOS Local Security Checks
CVSSv2 Base
CVSSv2 Base
4.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
10 years ago
Modified
Modified
5 years ago
Summary
A large number of crafted PIM join messages can crash the RPD routing daemon.
Insight
Insight
Receipt of a large number of crafted IPv4 or IPv6 PIM join messages in a Next-Generation Multicast VPN (NGEN MVPN) environment can trigger the RPD routing daemon to crash.
Affected Software
Affected Software
Junos OS 10.0 or later but only applies to PIM in an NGEN MVPN environment.
Detection Method
Detection Method
Checks if a vulnerable OS build is present on the target host.
Solution
Solution
New builds of Junos OS software are available from Juniper. As a workaround ACLs or firewall filters to limit PIM access to the router only from trusted hosts.