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Juniper Junos DoS (JSA11148)

medium Nessus Plugin ID 149366

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of Junos OS installed on the remote host is affected by a denial of service vulnerability as referenced in the JSA11148 advisory. On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs (Modular Port Concentrators) where Integrated Routing and Bridging (IRB) interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Layer 2 network events at Customer Edge (CE) devices may cause memory leaks in the MPC of Provider Edge (PE) devices which can cause an out of memory condition and MPC restart. When this issue occurs, there will be temporary traffic interruption until the MPC is restored.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA11148

See Also

http://www.nessus.org/u?bd4735b8

Plugin Details

Severity: Medium

ID: 149366

File Name: juniper_jsa11148.nasl

Version: 1.7

Type: combined

Published: 5/10/2021

Updated: 7/24/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2021-0257

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/model, Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2021

Vulnerability Publication Date: 4/14/2021

Reference Information

CVE: CVE-2021-0257

JSA: JSA11148