CVE-2020-17482: powerdns authoritative Use of Uninitialized Resource
Vulnerability summary
CVE-2020-17482 is a medium (CVSS 4.3) Use of Uninitialized Resource vulnerability in powerdns authoritative. EPSS estimates a 2.59% chance of exploitation in the next 30 days, higher than 85.3% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 02-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · AlpineEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
2.59%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.59% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse6 products
- pdns&distro=HPE Helion OpenStack 8< 4.1.2-3.9.1
- pdns&distro=SUSE OpenStack Cloud 8< 4.1.2-3.9.1
- pdns&distro=SUSE OpenStack Cloud 9< 4.1.8-3.6.1
- pdns&distro=SUSE Package Hub 12 SP1< 4.3.1-bp152.2.5.1
- pdns&distro=SUSE Package Hub 15 SP1< 4.3.1-bp152.2.5.1
Opensuse2 products
- pdns&distro=openSUSE Leap 15.1< 4.3.1-bp152.2.5.1
- pdns&distro=openSUSE Leap 15.2< 4.3.1-bp152.2.5.1
Alpine1 product
- pdns< 4.1.14-r0 | < 4.2.3-r0 | < 4.3.1-r0
Debian1 product
- pdns< 4.3.1-1
Powerdns1 product
- authoritative< 4.3.1
Ubuntu1 product
- pdns< 4.0.0~alpha2-3ubuntu0.1~esm1 | < 4.1.1-1ubuntu0.1~esm1 | < 4.2.1-1ubuntu0.1~esm1
6 vendors · 12 products
References
15 links- doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.htmlX Refsource CONFIRMREPORTVendor Advisory
- lists.opensuse.org/archives/…Advisory