SB2019071745 - Fedora 29 update for bind, bind-dyndb-ldap, dhcp, dnsperf

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Main Vulnerability Database SB2019071745

SB2019071745 - Fedora 29 update for bind, bind-dyndb-ldap, dhcp, dnsperf

Published: July 17, 2019 Updated: April 25, 2025

Security Bulletin ID SB2019071745
CSH 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 vulnerability.


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

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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