Is CVE-2017-15105 in the CISA KEV catalog?

No. CVE-2017-15105 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-15105?

CVE-2017-15105 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2017-15105?

CVE-2017-15105 has an EPSS score of 2.68% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-15105?

Upgrade unbound on debian 11 to 1.7.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2017-15105

MEDIUMEPSS 84th pctl

5.3

CVSS v3

NVD

Description

A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.

CWE-358 CWE-20Improper Input Validation

How to fix

Remediation Available

unboundDebian

Fixed in:1.7.1-1CVE-2017-15105

libunbound2Ubuntu

Fixed in:1.4.22-1ubuntu4.14.04.3USN-3673-1

Fixed in:1.5.8-1ubuntu1.1USN-3673-1

Fixed in:1.6.7-1ubuntu2.1USN-3673-1

unboundUbuntu

Fixed in:1.4.22-1ubuntu4.14.04.3USN-3673-1

Fixed in:1.5.8-1ubuntu1.1USN-3673-1

Fixed in:1.6.7-1ubuntu2.1USN-3673-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

2.68%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch1

unbound.net

Third-Party Advisory4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.