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Unscored USN-3430-1 6 CVEs

dnsmasq vulnerabilities

Published Oct 2, 2017 · Updated Feb 10, 2026

Summary

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker
could use this issue to cause Dnsmasq to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2017-14491)

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled IPv6 router advertisements. A
remote attacker could use this issue to cause Dnsmasq to crash, resulting
in a denial of service, or possibly execute arbitrary code.
(CVE-2017-14492)

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled DHCPv6 requests. A remote
attacker could use this issue to cause Dnsmasq to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2017-14493)

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled DHCPv6 packets. A remote
attacker could use this issue to possibly obtain sensitive memory contents.
(CVE-2017-14494)

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker
could use this issue to cause Dnsmasq to consume memory, resulting in a
denial of service. (CVE-2017-14495)

Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher
discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker
could use this issue to cause Dnsmasq to crash, resulting in a denial of
service. (CVE-2017-14496)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS dnsmasq 2.68-1ubuntu0.2
Ubuntu · 16.04 LTS 16.04:LTS dnsmasq 2.75-1ubuntu0.16.04.3

Vulnerabilities 6

References

  • report
    https://ubuntu.com/security/CVE-2017-14491
  • report
    https://ubuntu.com/security/CVE-2017-14492
  • report
    https://ubuntu.com/security/CVE-2017-14493
  • report
    https://ubuntu.com/security/CVE-2017-14494
  • report
    https://ubuntu.com/security/CVE-2017-14495
  • report
    https://ubuntu.com/security/CVE-2017-14496