SB2018061306 - Information disclosure in ISC BIND

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Main Vulnerability Database SB2018061306

SB2018061306 - Information disclosure in ISC BIND

Published: June 13, 2018 Updated: January 30, 2020

Security Bulletin ID SB2018061306
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Information disclosure (CVE-ID: CVE-2018-5738)

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to improper access controls. When configured with "recursion yes;" and match list values are not provided for "allow-query-cache" or "allow-query", the "allow-recursion" setting may permit all hosts to perform recursion. A remote attacker can bypass intended recursion access controls, make a recursive query to a BIND nameserver in certain cases and examine the results of queries answered from the cache to determine which queries a server has previously responded to.


Remediation

Install update from vendor's website.

References