Skip to content
Noroxi
CVE-2017-15107· NVD / CVE Program· CNA redhat

A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78.

A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78. Wildcard synthesized NSEC records could be improperly interpreted to prove the non-existence of hostnames that actually exist.

HighCVSS 7.5 · v3.0—No exploit Fix available

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help
Published
Jan 23, 2018
Updated
Jun 16, 2026
EPSS
2.6% · 85th percentile
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.6%

Affected systems

VendorProduct
thekelleysdnsmasq

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • thekelleys dnsmasqup to 2.78 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Simon Kelley dnsmasq

    • up to and including 2.78affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10dnsmasqbefore 2.79-r02.79-r0
Alpine:v3.5dnsmasqbefore 2.76-r32.76-r3
Alpine:v3.6dnsmasqbefore 2.76-r62.76-r6
Alpine:v3.7dnsmasqbefore 2.78-r22.78-r2
Debian:12dnsmasqbefore 2.79-12.79-1
openSUSE:Leap 15.1dnsmasqbefore 2.78-lp151.5.3.12.78-lp151.5.3.1
openSUSE:Tumbleweeddnsmasqbefore 2.86-1.12.86-1.1
SUSE:HPE Helion OpenStack 8dnsmasqbefore 2.78-18.6.12.78-18.6.1
SUSE:Linux Enterprise Module for Basesystem 15dnsmasqbefore 2.78-3.8.12.78-3.8.1
SUSE:Linux Enterprise Module for Basesystem 15 SP1dnsmasqbefore 2.78-7.3.12.78-7.3.1
SUSE:Linux Enterprise Server 11 SP4-LTSSdnsmasqbefore 2.78-0.17.10.12.78-0.17.10.1

Same product

thekelleys: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-14491Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via
    64This week
  • CVE-2020-25681A flaw was found in dnsmasq before version 2.83.
    56Plan
  • CVE-2020-25682A flaw was found in dnsmasq before 2.83.
    53Plan
  • CVE-2020-25687A flaw was found in dnsmasq before version 2.83.
    49Plan
  • CVE-2020-25683A flaw was found in dnsmasq before version 2.83.
    49Plan
  • CVE-2021-45957Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c).
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:dnsmasq2.79-r0 · Alpine:v3.10Package registry (OSV)
debian:dnsmasq2.79-1 · Debian:12Package registry (OSV)
opensuse:dnsmasq2.78-lp151.5.3.1 · openSUSE:Leap 15.1Package registry (OSV)
suse:dnsmasq2.78-0.17.10.1 · SUSE:Linux Enterprise Server 11 SP4-LTSSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-358 · Improperly Implemented Security Check for Standard

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records