-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
2015-07 Security Bulletin: Junos: SRX Network Security
Daemon denial of service vulnerability (CVE-2015-5363)
9 July 2015
AusCERT Security Bulletin Summary
Product: Juniper SRX Series services gateways
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2015-5363
- --------------------------BEGIN INCLUDED TEXT--------------------
2015-07 Security Bulletin: Junos: SRX Network Security Daemon denial of
service vulnerability (CVE-2015-5363)
This issue can affect all SRX Series services gateways.
The SRX Network Security Daemon (nsd) in SRX Series services gateways is
susceptible to a denial of service vulnerability. This issue can happen while
processing certain DNS response messages for name resolution requests
initiated by the SRX device. An attack would require a rogue DNS server.
Repeated crashes of the nsd process would prevent SRX's security subsystem
from functioning properly. If this condition occurs, security-related
configurations cannot be committed and security-related 'show' commands do not
work. For example:
user@srx> show security zones
error: the network-security subsystem is not running
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
No other Juniper Networks products or platforms are affected by this issue.
This issue has been assigned CVE-2015-5363.
The following software releases have been updated to resolve this specific
issue: Junos OS 12.1X44-D50, 12.1X46-D35, 12.1X47-D25, 12.3X48-D15, and all
This issue is being tracked as PR 1067941 and is visible on the Customer
KB16765 - "In which releases are vulnerabilities fixed?" describes which
release vulnerabilities are fixed as per our End of Engineering and End of
Life support policies.
No known workaround exists for this issue.
How to obtain fixed software:
Security vulnerabilities in Junos are fixed in the next available Maintenance
Release of each supported Junos version. In some cases, a Maintenance Release
is not planned to be available in an appropriate time-frame. For these cases,
Service Releases are made available in order to be more timely. Security
Advisory and Security Notices will indicate which Maintenance and Service
Releases contain fixes for the issues described. Upon request to JTAC,
customers will be provided download instructions for a Service Release.
Although Juniper does not provide formal Release Note documentation for a
Service Release, a list of "PRs fixed" can be provided on request.
2015-07-08: Initial publication
KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
KB16765: In which releases are vulnerabilities fixed?
KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Report a Vulnerability - How to Contact the Juniper Networks Security Incident
CVE-2015-5363: SRX Network Security Daemon denial of service vulnerability
CVSSv2: 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Information for how Juniper Networks uses CVSS can be found at KB 16446
"Common Vulnerability Scoring System (CVSS) and Juniper's Security
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to email@example.com
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----