CVE-2017-14491

critical-risk
Published 2017-10-04

Heap-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 DNS response.

Do I need to act?

!
57.8% chance of exploitation in next 30 days
EPSS score — higher than 42% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
42941
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Nvidia Opensuse Debian Arista Canonical Arubanetworks Redhat Siemens Huawei Thekelleys Suse Synology

References (80)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
Third Party Advisory http://nvidia.custhelp.com/app/answers/detail/a_id/4560
Third Party Advisory http://nvidia.custhelp.com/app/answers/detail/a_id/4561
Exploit http://packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.h...
Release Notes http://thekelleys.org.uk/dnsmasq/CHANGELOG
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=0549c73b7ea6b22a3c...
Third Party Advisory http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
Third Party Advisory http://www.debian.org/security/2017/dsa-3989
Third Party Advisory http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171103-01-dnsmasq...
Broken Link http://www.securityfocus.com/bid/101085
Broken Link http://www.securityfocus.com/bid/101977
Broken Link http://www.securitytracker.com/id/1039474
Third Party Advisory http://www.ubuntu.com/usn/USN-3430-1
Third Party Advisory http://www.ubuntu.com/usn/USN-3430-2
Third Party Advisory http://www.ubuntu.com/usn/USN-3430-3
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2836
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2837
and 60 more references
81
/ 100
critical-risk
Severity 32/34 · Critical
Exploitability 25/34 · High
Exposure 24/34 · High