Junos OS: Nexthop index allocation failed: private index space exhausted after incoming ARP requests to management interface
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | affected |
|
No data.
No data available yet.
Vendor Solution
The following software releases have been updated to recover from private index space exhaustion: 17.3R3-S1 and all subsequent releases.
Vendor Workaround
There are no viable workarounds for this issue.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2018-0887 | 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. |
No CVSS v4.0
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.637% probability within 30 days)
Key SSVC decision points have not yet been added.
No history.