Juniper Junos OS Vulnerability (JSA11181)

medium Nessus Plugin ID 151639

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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 vulnerability as referenced in the JSA11181 advisory.

- An Out-of-bounds Read vulnerability in the processing of specially crafted LLDP frames by the Layer 2 Control Protocol Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved may allow an attacker to cause a Denial of Service (DoS), or may lead to remote code execution (RCE). Continued receipt and processing of these frames, sent from the local broadcast domain, will repeatedly crash the l2cpd process and sustain the Denial of Service (DoS) condition. (CVE-2021-0277)

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 JSA11181

Plugin Details

Severity: Medium

ID: 151639

File Name: juniper_jsa11181.nasl

Version: 1.4

Type: combined

Family: Junos Local Security Checks

Published: 7/14/2021

Updated: 1/26/2022

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS Score Source: CVE-2021-0277

CVSS v3

Risk Factor: Medium

Base Score: 6.2

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

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2021

Vulnerability Publication Date: 7/14/2021

Reference Information

IAVA: 2021-A-0324-S

JSA: JSA11181

Detections

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