Juniper Networks Releases Security Updates

Juniper Networks has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. NCCIC/US-CERT encourages users and administrators to review the following Juniper Security Advisori...

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 o...

CVE-2018-0004

A sustained sequence of different types of normal transit traffic can trigger a high CPU consumption denial of service condition in the Junos OS register and schedule software interrupt handler subsystem when a specific command is issued to the device. This affects one or more threads and...

CVE-2018-0009

On Juniper Networks SRX series devices, firewall rules configured to match custom application UUIDs starting with zeros can match all TCP traffic. Due to this issue, traffic that should have been blocked by other rules is permitted to flow through the device resulting in a firewall bypass...

CVE-2018-0003

A specially crafted MPLS packet received or processed by the system, on an interface configured with MPLS, will store information in the system memory. Subsequently, if this stored information is accessed, this may result in a kernel crash leading to a denial of service. Affected releases are...

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 o...

Design/Logic Flaw

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 o...

Design/Logic Flaw

A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions...

Authentication flaw

An unauthenticated root login may allow upon reboot when a commit script is used. A commit script allows a device administrator to execute certain instructions during commit, which is configured under the system scripts commit stanza. Certain commit scripts that work without a problem during norm...

Design/Logic Flaw

A sustained sequence of different types of normal transit traffic can trigger a high CPU consumption denial of service condition in the Junos OS register and schedule software interrupt handler subsystem when a specific command is issued to the device. This affects one or more threads and...

Race condition

On Juniper Networks SRX series devices, firewall rules configured to match custom application UUIDs starting with zeros can match all TCP traffic. Due to this issue, traffic that should have been blocked by other rules is permitted to flow through the device resulting in a firewall bypass...

Design/Logic Flaw

QFX and EX Series switches configured to drop traffic when the MAC move limit is exceeded will forward traffic instead of dropping traffic. This can lead to denials of services or other unintended conditions. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D40;...

CVE-2018-0001

A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions...

CVE-2018-0001

A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions...

Design/Logic Flaw

A specially crafted MPLS packet received or processed by the system, on an interface configured with MPLS, will store information in the system memory. Subsequently, if this stored information is accessed, this may result in a kernel crash leading to a denial of service. Affected releases are...

CVE-2018-0005 Security Bulletin: Junos OS: MAC move limit configured to drop traffic may forward traffic.

QFX and EX Series switches configured to drop traffic when the MAC move limit is exceeded will forward traffic instead of dropping traffic. This can lead to denials of services or other unintended conditions. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D40;...

CVE-2018-0003

CVE-2018-0003 covers a kernel crash/DoS in Junos OS caused by processing specially crafted MPLS packets on MPLS-configured interfaces. Affected are many Junos OS branches (e.g., 12.1X46 <12.1X46-D71; 12.3 <12.3R12-S7; 12.3X48 <12.3X48-D55; 14.1 <14.1R8-S5/14.1R9; 14.1X53 <14.1X53-D...

CVE-2018-0006

The CVE-2018-0006 vulnerability affects Junos OS on devices configured for DHCPv4/v6 over AE auto-sensed VLANs in Broadband Edge deployments. The issue is a Denial of Service caused by a high rate of VLAN authentication requests triggering unbounded memory allocations in the bbe-smgd (BBE subscri...

CVE-2018-0007

CVE-2018-0007 describes a memory corruption vulnerability in Junos OS triggered by unauthenticated LLDP packets on local segments, potentially leading to denial of service and, if authenticated on the device, arbitrary code execution with privilege escalation. The issue affects Junos OS releases ...

CVE-2018-0004

CVE-2018-0004 affects Junos OS kernel: Kernel Denial of Service in the register/schedule interrupt handler triggered by a sustained sequence of normal transit traffic. Affects Junos OS releases listed in the entry (e.g., 12.1X46 prior to -D50; 12.3X48 prior to -D30; 12.3R before -R12-S7; 14.1 bef...