Security Alert (A17-02-01): Vulnerability in ISC BIND

Description:

 A vulnerability were found in the ISC BIND software. A remote attacker could send a specially crafted query to trigger an assertion failure or read a NULL pointer which could cause the BIND to exit.

Only servers use both Response Policy Zones (RPZ) and DNS64 simultaneously can be affected by this vulnerability.

Affected Systems:

• BIND 9.8.8
• BIND 9.9.3-S1 to 9.9.9-S7
• BIND 9.9.3 to 9.9.9-P5
• BIND 9.9.10b1
• BIND 9.10.0 to 9.10.4-P5
• BIND 9.10.5b1
• BIND 9.11.0 to 9.11.0-P2
• BIND 9.11.1b1

Impact:

Successful exploitation could lead to a denial of service (DoS) condition on an affected system.

Recommendation:

Internet Systems Consortium (ISC) has released the following patches to solve the problems:

• BIND 9.9.9-P6, 9.10.4-P6 and 9.11.0-P3
• BIND 9.9.9-S8
  http://www.isc.org/downloads/
  
  

Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

More Information:

https://kb.isc.org/article/AA-01453
https://www.hkcert.org/my_url/en/alert/17021001
https://www.us-cert.gov/ncas/current-activity/2017/02/08/ISC-Releases-Security-Updates-BIND
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3135