CVE-2017-15094: powerdns powerdns_recursor
Vulnerability summary
CVE-2017-15094 is a medium (CVSS 5.9) vulnerability in powerdns powerdns_recursor. EPSS estimates a 3.30% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities.
Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 23-01-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
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).
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.30%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.30% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-401Missing Release of Memory after Effective LifetimeThe product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
- CWE-772Missing Release of Resource after Effective LifetimeThe product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Powerdns2 products
- powerdns_recursorfrom 4.0.0 up to and including 4.0.6
- recursor≥ 4.0.0, ≤ 4.0.6
Alpine1 product
- pdns-recursor< 4.0.7-r0
Debian1 product
- pdns-recursor< 4.0.7-1
Ubuntu1 product
- pdns-recursorAll versions (No fix recorded)
4 vendors · 5 products
References
7 links- doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-07.htmlX Refsource CONFIRMMitigationPatchVendor AdvisoryREPORT
