An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.
| Vendor | Product | Versions |
|---|---|---|
| powerdns | dnsdist | 1.9.0, 2.0.0 |
Updated affected versions to include 1.9.11 and 2.0.2, changed severity to HIGH, and noted that no exploit is available.
Initial creation
