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Juniper Junos OS DoS (JSA11137)

high Nessus Plugin ID 149369

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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 JSA11137 advisory. An unauthenicated remote attacker can bypass the storm-control feature on devices due to a rare race condition exists in the Layer 2 Address Learning Daemon (L2ALD) of Juniper Networks to cause denial of service (DoS).

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 JSA11137

See Also

http://www.nessus.org/u?524bbba5

Plugin Details

Severity: High

ID: 149369

File Name: juniper_jsa11137.nasl

Version: 1.7

Type: combined

Published: 5/11/2021

Updated: 7/24/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-0244

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/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-2021-0244

JSA: JSA11137