CVE-2018-0006 Information

Description

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.

CVSS Vector

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

Reference

http://www.securitytracker.com/id/1040184 https://kb.juniper.net/JSA10834

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.3