Description
An issue has been found in the DNSSEC validation component of PowerDNS Recursor from 4.0.0 and up to and including 4.0.6, where the signatures might have been accepted as valid even if the signed data was not in bailiwick of the DNSKEY used to sign it. This allows an attacker in position of man-in-the-middle to alter the content of records by issuing a valid signature for the crafted records.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PowerDNS | PowerDNS | from 4.0.0 and up to and including 4.0.6 | — |
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-recursor | 4.0.7-1 | — |
| Debian 13 | pdns-recursor | 4.0.7-1 | — |
| Debian 12 | pdns-recursor | 4.0.7-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | pdns-recursor | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pdns-recursor | 4.5.5-1.3 | openSUSE-SU-2024:11157-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.23 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.22 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.21 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.20 | pdns-recursor | 4.0.7-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.18 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.17 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.16 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.15 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.14 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.13 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.12 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.11 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.10 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.9 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.8 | pdns-recursor | 4.0.7-r0 | — |
| Alpine v3.7 | pdns-recursor | 4.0.7-r0 | — |
Advisories 1
- openSUSE-SU-2024:11157-1 pdns-recursor-4.5.5-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026