SB2017092624 - Fedora 27 update for dnsmasq

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Main Vulnerability Database SB2017092624

SB2017092624 - Fedora 27 update for dnsmasq

Published: September 26, 2017 Updated: April 24, 2025

Security Bulletin ID SB2017092624
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) Memory corruption (CVE-ID: CVE-2017-13704)

CWE-ID: CWE-119 - Memory corruption

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 boundary error in  when processing DNS queries longer than 512 bytes or EDNS0 packet size is different. A remote unauthenticated attacker can send a specially crafted DNS request to the affected service and trigger the application crash.

Successful exploitation of this vulnerability may allow an attacker to perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References