What is CVE-2018-0006?

CVE-2018-0006 is a medium-severity vulnerability in Juniper Junos, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2018-01-10.

How severe is CVE-2018-0006?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Juniper Junos

CVE-2018-0006

A high rate of VLAN authentication attempts sent from an adjacent host on the local broadcast domain can trigger high memory utilization by the BBE subscriber management daemon (bbe-smgd), and lead to a denial of service condition. The issue was caused by attempting to process an unbounded number of pending VLAN authentication requests, leading to excessive memory allocation. This issue only affects devices configured for DHCPv4/v6 over AE auto-sensed VLANs, utilized in Broadband Edge (BBE) deployments. Other configurations are unaffected by this issue. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R6-S2, 15.1R7; 16.1 versions prior to 16.1R5-S1, 16.1R6; 16.2 versions prior to 16.2R2-S2, 16.2R3; 17.1 versions prior to 17.1R2-S5, 17.1R3; 17.2 versions prior to 17.2R2.

EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 15.1, 16.1, 16.2
Juniper Networks Junos Os — versions 17.1, 16.1, 17.2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

sirt@juniper.net (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
sirt@juniper.net (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2018-0006?: CVE-2018-0006 is a medium-severity vulnerability in Juniper Junos, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2018-01-10.
How severe is CVE-2018-0006?: Medium severity. CVSS v3 base score is 6.5 out of 10.