CVE Vulnerability

CVE-2018-0063

A vulnerability in the IP next-hop index database in Junos OS 17.3R3 may allow a flood of ARP requests, sent to the management interface, to exhaust the private Internal routing interfaces (IRIs) next-hop limit. Once the IRI next-hop database is full, no further next hops can be learned and existing entries cannot be cleared, leading to a sustained denial of service (DoS) condition. An indicator of compromise for this issue is the report of the following error message: %KERN-4: Nexthop index allocation failed: private index space exhausted This issue only affects the management interface, and does not impact regular transit traffic through the FPCs. This issue also only affects Junos OS 17.3R3. No prior versions of Junos OS are affected by this issue. Affected releases are Juniper Networks Junos OS: 17.3R3.

3.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.5 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://kb.juniper.net/JSA10899 Vendor Advisory
http://www.securitytracker.com/id/1041861 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:o:juniper:junos:17.3:*:*:*:*:*:*:*
Information

Published : 2018-10-10 06:29

Updated : 2021-11-06 03:35

NVD link : CVE-2018-0063

Mitre link : CVE-2018-0063

Products Affected
No products.
CWE
CWE-400