What is CVE-2017-14495?

CVE-2017-14495 is a high-severity vulnerability in Novell Leap, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2017-10-03.

How severe is CVE-2017-14495?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2017-14495 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Novell Leap

CVE-2017-14495

Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation.

Published 2017-10-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.843 (99.7th percentile), scored 2026-10-18.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.814 · newest: 0.843 · change: +0.029

Affected products

Novell Leap — versions 42.2, 42.3
Thekelleys Dnsmasq
Canonical Ubuntu Linux — versions 14.04, 16.04, 17.04
Debian Linux — versions 7.0, 7.1, 9.0
Red Hat Enterprise Linux Desktop — versions 7.0
Red Hat Enterprise Linux Server — versions 7.0
Red Hat Enterprise Linux Workstation — versions 7.0

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

Public proof-of-concept exploits

References

www.securitytracker.com/id/1039474 (VDB Entry, Third Party Advisory, vdb-entry)
www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
www.debian.org/security/2017/dsa-3989 (vendor-advisory, Third Party Advisory)
access.redhat.com/security/vulnerabilities/3199382 (Third Party Advisory, Issue Tracking)
www.securityfocus.com/bid/101085 (VDB Entry, Third Party Advisory, vdb-entry)
www.ubuntu.com/usn/USN-3430-1 (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/101977 (vdb-entry)
www.kb.cert.org/vuls/id/973527 (US Government Resource, Third Party Advisory, third-party-advisory)
security.gentoo.org/glsa/201710-27 (vendor-advisory)
www.ubuntu.com/usn/USN-3430-2 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-14495?: CVE-2017-14495 is a high-severity vulnerability in Novell Leap, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2017-10-03.
How severe is CVE-2017-14495?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-14495 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.