Summary
It was discovered that OpenStack Designate did not properly validate
overlapping zones under certain circumstances. An authenticated user could
possibly use this issue to redirect DNS traffic to attacker-controlled
systems or cause a denial of service.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | designate | 1:14.0.4-0ubuntu1.1 |
| Ubuntu · 24.04 LTS 24.04:LTS | designate | 1:18.0.0-0ubuntu1.1 |
| Ubuntu · 26.04 LTS 26.04:LTS | designate | 1:22.0.0-0ubuntu2.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | designate | 1:2.1.0-0ubuntu1+esm1 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | designate | 1:6.0.1-0ubuntu1.2+esm1 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | designate | 1:10.0.2-0ubuntu1+esm1 |
Vulnerabilities 1
-
Critical 9.6
In OpenStack Designate before 22.0.1, zone creation checks (_is_subzone, _is_superzone, and the duplicate-zone DB const…
References
-
report
https://ubuntu.com/security/CVE-2026-71193