ISC BIND software included with Junos for SRX Series devices is affected by CVE-2017-3137. This may allow a network based attacker to cause a denial of service condition on the devices.

This issue only affects SRX devices where DNS proxy service has been configured under the [system services dns dns-proxy] stanza. This service is not enabled by default.

This issue does not affect other Junos OS based devices as they do not have BIND DNS server feature.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue has been assigned CVE-2017-3137 .
 

The following software releases have been updated to resolve this specific issue: Junos OS 12.1X46-D71, 12.3X48-D55, 15.1X49-D110, 17.3R1, and all subsequent releases.

This issue is being tracked as PR 1276184 and is visible on the Customer Support website.
 

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.
 

There are no viable workarounds for this issue.
 

2017-10-11: Initial Publication.

• KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2017-3137 at cve.mitre.org