Juniper Junos Routing Protocol Daemon LDP Packet DoS (JSA10777)

Medium Nessus Plugin ID 99524


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


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.


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

See Also

Plugin Details

Severity: Medium

ID: 99524

File Name: juniper_jsa10777.nasl

Version: 1.3

Type: combined

Published: 2017/04/20

Modified: 2017/07/17

Dependencies: 55932

Risk Information

Risk Factor: Medium


Base Score: 5.5

Vector: CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:C


Base Score: 5.7

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version, Settings/ParanoidReport

Patch Publication Date: 2017/04/12

Vulnerability Publication Date: 2017/04/12

Reference Information

CVE: CVE-2017-2312

BID: 97611

OSVDB: 155439

JSA: JSA10777