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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pdns | 4.3.1-1 | — |
| Debian 13 | pdns | 4.3.1-1 | — |
| Debian 12 | pdns | 4.3.1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | pdns | 4.5.3-1ubuntu0.1~esm1 | USN-7203-1 |
| Ubuntu Pro 22.04 LTS | pdns-recursor | 4.6.0-1ubuntu1+esm1 | USN-7203-1 |
| Ubuntu Pro 20.04 LTS | pdns +1 | 4.2.1-1ubuntu0.1~esm1 | USN-7203-1 |
| Ubuntu Pro 18.04 LTS | pdns | 4.1.1-1ubuntu0.1~esm1 | USN-7203-1 |
| Ubuntu Pro 18.04 LTS | pdns-recursor | 4.1.1-2ubuntu0.1~esm1 | USN-7203-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | pdns | 4.0.0~alpha2-3ubuntu0.1~esm1 | USN-7203-1 |
| Ubuntu Pro 16.04 LTS | pdns-recursor | 4.0.0~alpha2-2ubuntu0.1+esm1 | USN-7203-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | pdns | 4.3.1-bp152.2.5.1 | openSUSE-SU-2020:1556-1 |
| SUSE Package Hub 15 SP1 | pdns | 4.3.1-bp152.2.5.1 | openSUSE-SU-2020:1556-1 |
| SUSE Package Hub 12 SP1 | pdns | 4.3.1-bp152.2.5.1 | openSUSE-SU-2020:1556-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud 9 | pdns | 4.1.8-3.6.1 | SUSE-SU-2020:2785-1 |
| SUSE OpenStack Cloud 8 | pdns | 4.1.2-3.9.1 | SUSE-SU-2020:2718-1 |
| SUSE HPE Helion OpenStack 8 | pdns | 4.1.2-3.9.1 | SUSE-SU-2020:2718-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pdns | 4.5.1-1.5 | openSUSE-SU-2024:11156-1 |
| openSUSE Leap 15.2 | pdns | 4.3.1-bp152.2.5.1 | openSUSE-SU-2020:1556-1 |
| openSUSE Leap 15.1 | pdns | 4.3.1-bp152.2.5.1 | openSUSE-SU-2020:1556-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pdns | 4.3.1-r0 | — |
| Alpine v3.23 | pdns | 4.3.1-r0 | — |
| Alpine v3.22 | pdns | 4.3.1-r0 | — |
| Alpine v3.21 | pdns | 4.3.1-r0 | — |
| Alpine v3.20 | pdns | 4.3.1-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pdns | 4.3.1-r0 | — |
| Alpine v3.18 | pdns | 4.3.1-r0 | — |
| Alpine v3.17 | pdns | 4.3.1-r0 | — |
| Alpine v3.16 | pdns | 4.3.1-r0 | — |
| Alpine v3.15 | pdns | 4.3.1-r0 | — |
| Alpine v3.14 | pdns | 4.3.1-r0 | — |
| Alpine v3.13 | pdns | 4.3.1-r0 | — |
| Alpine v3.12 | pdns | 4.2.3-r0 | — |
| Alpine v3.11 | pdns | 4.2.3-r0 | — |
| Alpine v3.10 | pdns | 4.1.14-r0 | — |
| Alpine v3.9 | pdns | 4.1.14-r0 | — |
Advisories 6
- USN-7203-1 pdns, pdns-recursor vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- SUSE-SU-2020:2718-1 Security update for pdns SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11156-1 pdns-4.5.1-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2785-1 Security update for pdns SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1556-1 Security update for pdns SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0058 PowerDNS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 14, 2025