CVE-2017-2340

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Summary

CVECVE-2017-2340
StatePUBLISHED
Assignerjuniper
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-04-24 15:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionOn Juniper Networks Junos OS 15.1 releases from 15.1R3 to 15.1R4, 16.1 prior to 16.1R3, on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured, a vulnerability in processing IPv6 ND packets originating from subscribers and destined to M/MX series routers can result in a PFE (Packet Forwarding Engine) hang or crash.

Risk And Classification

Primary CVSS: v3.0 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-20 | denial of service vulnerability

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Juniper Junos 15.1 r3 All All
Operating System Juniper Junos 15.1 r4 All All
Operating System Juniper Junos 16.1 r1 All All
Operating System Juniper Junos 16.1 r2 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Juniper Networks Junos OS On M/MX Platforms Where Enhanced Subscriber Management For DHCPv6 Subscribers Is Configured affected 15.1 releases from 15.1R3 to 15.1R4 Not specified
CNA Juniper Networks Junos OS On M/MX Platforms Where Enhanced Subscriber Management For DHCPv6 Subscribers Is Configured affected 16.1 prior to 16.1R3 Not specified
CNA Juniper Networks Junos OS On M/MX Platforms Where Enhanced Subscriber Management For DHCPv6 Subscribers Is Configured affected 16.2R1 and all subsequent releases have a resolution for this vulnerability Not specified
CNA Juniper Networks Junos OS On M/MX Platforms Where Enhanced Subscriber Management For DHCPv6 Subscribers Is Configured affected All releases prior to 15.1R3 are not affected. Not specified

References

ReferenceSourceLinkTags
Juniper Junos on M/MX Series Routers IPv6 ND Packet Processing Flaw Lets Remote Users Cause the Target Service to Crash - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Juniper Junos CVE-2017-2340 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
2017-04 Security Bulletin: Junos: PFE crash while handling IPv6 ND advertisements (CVE-2017-2340) - Juniper Networks af854a3a-2127-422b-91ae-364da2661108 kb.juniper.net Vendor Advisory
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