Security Alert (A18-08-03): Vulnerability in ISC BIND


 

Published on: 09 August 2018

  
  

Description:

A vulnerability was found in "deny-answer-aliases" feature of the Internet Systems Consortium (ISC) BIND software. A remote attacker could send a specially crafted query to trigger an assertion failure.  Only those servers with "deny-answer-aliases" feature explicitly enabled are affected.

 

Affected Systems:

  • BIND 9.7.0 to 9.8.8,
  • BIND 9.9.0 to 9.9.13,
  • BIND 9.10.0 to 9.10.8,
  • BIND 9.11.0 to 9.11.4,
  • BIND 9.12.0 to 9.12.2,
  • BIND 9.13.0 to 9.13.2,

 

Impact:

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

 

Recommendation:

ISC has released the following patches to solve the problems:

  • BIND 9 version 9.9.13-P1
  • BIND 9 version 9.10.8-P1
  • BIND 9 version 9.11.4-P1
  • BIND 9 version 9.12.2-P1

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-01639/0
https://www.hkcert.org/my_url/en/alert/18080901
https://www.us-cert.gov/ncas/current-activity/2018/08/08/ISC-Releases-Security-Advisory-BIND
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5740

 



Tag: BIND , ISC
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