THREATPORT/VULNERABILITY/CVE-2017-15094
MEDIUM SEVERITY

CVE-2017-15094

Recursor vulnerability

CVSS
5.9
EPSS
3.3%
EPSS pct
87th
Exploited
No known
An issue has been found in the DNSSEC parsing code of PowerDNS Recursor from 4.0.0 up to and including 4.0.6 leading to a memory leak when parsing specially crafted DNSSEC ECDSA keys. These keys are only parsed when validation is enabled by setting dnssec to a value other than off or process-no-validate (default).
Affected vendor
Powerdns
Affected product
Recursor
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-401 — Missing Release of Memory (Memory Leak)
  • CWE-772 — Missing Release of Resource after Effective Lifetime
Published
2018-01-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2017-15094

  • Confirm whether Powerdns Recursor is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-15094.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-15094

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-15094 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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