Description

On Juniper Networks MX Series with MS-MIC or MS-MPC card configured with NAT64 configuration, receipt of a malformed IPv6 packet may crash the MS-PIC component on MS-MIC or MS-MPC. This issue occurs when a multiservice card is translating the malformed IPv6 packet to IPv4 packet. An unauthenticated attacker can continuously send crafted IPv6 packets through the device causing repetitive MS-PIC process crashes, resulting in an extended Denial of Service condition. This issue affects Juniper Networks Junos OS on MX Series: 15.1 versions prior to 15.1R7-S7; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S11, 17.4R3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.2X75 versions prior to 18.2X75-D41, 18.2X75-D430, 18.2X75-D53, 18.2X75-D65; 18.3 versions prior to 18.3R2-S4, 18.3R3; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2.

Severity

 

CVSS Version 3.x CVSS Version 2.0

CVSS 3.x Severity and Metrics:

CNA:  Juniper Networks, Inc.

Base Score:  5.3 MEDIUM

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

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The CNA providing a score has achieved an Acceptance Level of Provider. The NVD will only audit a subset of scores provided by this CNA.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score:  5.0 MEDIUM

Vector:  (AV:N/AC:L/Au:N/C:N/I:N/A:P)

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://kb.juniper.net/JSA11077	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-131	Incorrect Calculation of Buffer Size	NIST   Juniper Networks, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

CPE Deprecation Remap by NIST 2/05/2021 11:49:04 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	OR *cpe:2.3:a:juniper:junos:18.2:r2:*:*:*:*:*:*	OR *cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*

CPE Deprecation Remap by NIST 2/05/2021 11:48:58 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	OR *cpe:2.3:a:juniper:junos:18.2:r1-s4:*:*:*:*:*:*	OR *cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*

CPE Deprecation Remap by NIST 2/05/2021 11:48:54 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	OR *cpe:2.3:a:juniper:junos:18.2:r1-s3:*:*:*:*:*:*	OR *cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*

CPE Deprecation Remap by NIST 2/05/2021 11:48:49 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	OR *cpe:2.3:a:juniper:junos:18.2:r1:*:*:*:*:*:*	OR *cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*

Initial Analysis by NIST 10/28/2020 1:19:28 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 14128 characters. View Entire Change Record AND OR *cpe:2.3:a:juniper:junos:18.2:r1:*:*:*:*:*:* *cpe:2.3:a:juniper:junos:18.2:r1-s3:*:*:*:*:*:* *cpe:2.3:a:juniper:junos:18.2:r1-s4:*:*:*:*:*:* *cpe:2.3:a:juniper:junos:18.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:a1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2:*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Added	CWE		NIST CWE-131
Changed	Reference Type	https://kb.juniper.net/JSA11077 No Types Assigned	https://kb.juniper.net/JSA11077 Vendor Advisory