Juniper Junos Routing Protocol Daemon LDP Packet DoS (JSA10777)

medium Nessus Plugin ID 99524

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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.

Solution

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

See Also

http://www.nessus.org/u?1fa1895d

Plugin Details

Severity: Medium

ID: 99524

File Name: juniper_jsa10777.nasl

Version: 1.5

Type: combined

Published: 4/20/2017

Updated: 8/10/2018

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.5

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

CVSS v3

Risk Factor: Medium

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: 4/12/2017

Vulnerability Publication Date: 4/12/2017

Reference Information

CVE: CVE-2017-2312

BID: 97611

JSA: JSA10777