Juniper Junos Routing Protocol Daemon LDP Packet DoS (JSA10777)

This script is Copyright (C) 2017 Tenable Network Security, Inc.

Synopsis :

The remote device is affected by a denial of service vulnerability.

Description :

According to its self-reported version and configuration, the remote
Juniper Junos device is affected by a memory leak issue in the routing
protocol daemon (rpd) when handling a specific LDP packet, which over
time will consume memory that cannot be freed without restarting the
rpd process. An authenticated, adjacent attacker can exploit this, by
repeatedly using this kind of packet, to cause the rpd process to
crash and reload, resulting in a denial of service condition. Note
that this issue affects devices with either IPv4 or IPv6 LDP enabled
via the '[protocols ldp]' configuration. Furthermore, the interface on
which the packet arrives needs to have LDP enabled.

Nessus has not tested for this issue but has instead relied only on
the device's self-reported version and current configuration.

See also :

Solution :

Apply the relevant Junos software release or workaround referenced in
Juniper advisory JSA10777.

Risk factor :

Medium / CVSS Base Score : 5.5

Family: Junos Local Security Checks

Nessus Plugin ID: 99524 ()

Bugtraq ID: 97611

CVE ID: CVE-2017-2312

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