What’s Vulnerable › Vulnerabilities

CVE-2017-14493

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 85.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-10-03 · updated 2026-06-17
• Weakness: CWE-119

Description

Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 17.04
• Debian Linux: 7.0, 7.1, 9.0
• openSUSE Leap: 42.2, 42.3
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0
• Simon Kelley dnsmasq: through 2.77

References

• http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
• http://nvidia.custhelp.com/app/answers/detail/a_id/4561
• http://thekelleys.org.uk/dnsmasq/CHANGELOG
• http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=3d4ff1ba8419546490b464418223132529514033
• http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
• http://www.debian.org/security/2017/dsa-3989
• http://www.securityfocus.com/bid/101085
• http://www.securitytracker.com/id/1039474
• http://www.ubuntu.com/usn/USN-3430-1
• http://www.ubuntu.com/usn/USN-3430-2
• https://access.redhat.com/errata/RHSA-2017:2836
• https://access.redhat.com/errata/RHSA-2017:2837

Get alerted when CVE-2017-14493 or the next vulnerability affects your stack