Description

An Out Of Bounds (OOB) access vulnerability in the handling of responses by a Juniper Agile License (JAL) Client in Juniper Networks Junos OS and Junos OS Evolved, configured in Network Mode (to use Juniper Agile License Manager) may allow an attacker to cause a partial Denial of Service (DoS), or lead to remote code execution (RCE). The vulnerability exists in the packet parsing logic on the client that processes the response from the server using a custom protocol. An attacker with control of a JAL License Manager, or with access to the local broadcast domain, may be able to spoof a new JAL License Manager and/or craft a response to the Junos OS License Client, leading to exploitation of this vulnerability. This issue only affects Junos systems configured in Network Mode. Systems that are configured in Standalone Mode (the default mode of operation for all systems) are not vulnerable to this issue. This issue affects: Juniper Networks Junos OS: 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: version 20.1R1-EVO and later versions, prior to 21.2R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  8.8 HIGH

Vector:  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA:  Juniper Networks, Inc.

Base Score:  7.1 HIGH

Vector:  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score:  5.4 MEDIUM

Vector:  (AV:A/AC:M/Au:N/C:P/I:P/A:P)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://kb.juniper.net/JSA11219	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	NIST   Juniper Networks, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

CVE Modified by Juniper Networks, Inc. 5/14/2024 4:59:42 AM

Action	Type	Old Value	New Value

Initial Analysis by NIST 10/25/2021 5:52:14 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 5002 characters. View Entire Change Record OR *cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:
Added	CVSS V2		NIST (AV:A/AC:M/Au:N/C:P/I:P/A:P)
Added	CVSS V3.1		NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-125
Changed	Reference Type	https://kb.juniper.net/JSA11219 No Types Assigned	https://kb.juniper.net/JSA11219 Vendor Advisory