CVE-2018-10851: powerdns authoritative Uncontrolled Resource Consumption
Vulnerability summary
CVE-2018-10851 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in powerdns authoritative. EPSS estimates a 6.04% chance of exploitation in the next 30 days, higher than 93.3% of scored vulnerabilities.
Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 10Timeline
- 29-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
PowerDNS Authoritative Server 3.3.0 up to 4.1.4 excluding 4.1.5 and 4.0.6, and PowerDNS Recursor 3.2 up to 4.1.4 excluding 4.1.5 and 4.0.9, are vulnerable to a memory leak while parsing malformed records that can lead to remote denial of service.
CVSS metrics
6 scores · 5 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
6.04%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.04% 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-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine2 products
- pdns< 4.1.5-r0 | < 4.0.6-r0
- pdns-recursor< 4.1.7-r0 | < 4.0.9-r0 | < 4.1.8-r0
Debian2 products
- pdns< 4.1.5-1
- pdns-recursor< 4.1.7-1
Powerdns2 products
- authoritative≥ 3.3, ≤ 4.1.4
- recursor≥ 3.2, ≤ 4.1.4
The powerdns project2 products
- pdns3.3.0 to 4.1.4, excluding 4.1.5 and 4.0.6
- pdns-recursor3.2 to 4.1.4, excluding 4.1.5 and 4.0.9
Ubuntu2 products
- pdns< 4.0.0~alpha2-3ubuntu0.1~esm1 | < 4.1.1-1ubuntu0.1~esm1
- pdns-recursor< 4.0.0~alpha2-2ubuntu0.1+esm1 | < 4.1.1-2ubuntu0.1~esm1
5 vendors · 10 products
References
10 links- doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-04.htmlX Refsource CONFIRMVendor AdvisoryREPORT
- doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2018-03.htmlX Refsource CONFIRMVendor AdvisoryREPORT
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10851X Refsource CONFIRMIssue TrackingThird Party Advisory
