Specifications

The only way to determine the Junos OS version running on the device is to review the
list of installed sub-packages.
Junos OS Release 13.3 and Later Releases With the Junos
Field
Junos OS Release 13.2 and Earlier Releases Without the
Junos Field
user@host> show version
Hostname: lab
Model: ptx5000
Junos: 13.3R1.4
JUNOS Base OS boot [13.3R1.4]
JUNOS Base OS Software Suite [13.3R1.4]
JUNOS 64-bit Kernel Software Suite [13.3R1.4]
JUNOS Crypto Software Suite [13.3R1.4]
...
user@host> show version
Hostname: lab
Model: ptx5000
JUNOS Base OS boot [12.3R2.5]
JUNOS Base OS Software Suite [12.3R2.5]
JUNOS 64–bit Kernel Software Suite [12.3R2.5]
JUNOS Crypto Software Suite [12.3R2.5]
...
[See show version.]
•
Configuring regular expressions (M Series, MX Series, and T Series)— In all supported
Junos OS releases, regular expressions can no longer be configured if they require more
than 64 MB of memory or more than 256 recursions for parsing.
This change in the behavior of Junos OS is in line with the FreeBSD limit. The change
was made in response to a known consumption vulnerability that allows an attacker
to cause a denial-of-service (resource exhaustion) attack by using regular expressions
containing adjacent repetition operators or adjacent bounded repetitions. Junos OS
uses regular expressions in several places within the CLI. Exploitation of this vulnerability
can cause the Routing Engine to crash, leading to a partial denial of service. Repeated
exploitation can result in an extended partial outage of services provided by the routing
protocol process (rpd).
Related
Documentation
New and Changed Features on page 166•
• Known Issues on page 174
• Resolved Issues on page 176
• Documentation Updates on page 185
• Migration, Upgrade, and Downgrade Instructions on page 185
• Product Compatibility on page 188
Known Issues
This section lists the known issues in hardware and software in Junos OS Release 13.3R6.
The identifier following the description is the tracking number in the Juniper Networks
Problem Report (PR) tracking system.
•
Hardware on page 175
•
General Routing on page 175
•
MPLS on page 176
Copyright © 2015, Juniper Networks, Inc.174
Release Notes: Junos OS Release 13.3R6 for the EX Series, M Series, MX Series, PTX Series, and T Series