SB2019062007 - Denial of service in ISC Bind

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Main Vulnerability Database SB2019062007

SB2019062007 - Denial of service in ISC Bind

Published: June 20, 2019 Updated: October 7, 2019

Security Bulletin ID SB2019062007
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Race condition (CVE-ID: CVE-2019-6471)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition when processing DNS requests in dispatch.c. A remote attacker can send specially crafted DNS packets to the affected daemon, trigger a REQUIRE assertion failure and crash the DNS server.

Remediation

Install update from vendor's website.

References