Multiple vulnerabilities are addressed in the ISC BIND software included with Junos for SRX Series devices.

These issues 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.

These issues do 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 these issues.

The following software releases have been updated to resolve this specific issue:12.1X46-D76, 12.3X48-D70, 15.1X49-D140, 17.4R2 (pending release), 18.1R2, 18.2R1, and all subsequent releases.

Junos OS 18.2X75-D5 and subsequent releases also contain the updated ISC BIND libraries, however these releases are unaffected.

A service release (SR) for 17.3 on SRX is pending.

These issues are being tracked as PR  1343613  which is visible on the Customer Support website.

Note: Juniper SIRT's  policy  is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).

Software Releases, patches and updates are available at  https://www.juniper.net/support/downloads/ .

There are no viable workarounds for these issues.

2018-07-11: 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