| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service. |
| An attacker can send a web request that causes unlimited memory
allocation in the internal web server, leading to a denial of service.
The internal web server is disabled by default. |
| Incomplete validation of the SOA record present in a catalog zone might lead to a crash. |
| An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame. |
| An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being sent over the network or a crash. |
| An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s filtering rules, but will be rewritten as a valid OPT record when EDNS Client Subnet is inserted, causing the backend to see the EDNS option(s) that DNSdist did not filter. |
| Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail. |
| This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers. |
| An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted with a value causing invalid output to be produced in the prometheus endpoint. The prometheus endpoint will then be rejected by the scraper until the dynamic block expires. |
| An attacker might be able to cause outgoing TCP connections to backend to be stuck until a timeout occurs instead of being released immediately, by sending IXFR queries. This could be used to cause a denial of service if there is a limit to the number of concurrent connections to this backend, or if the process runs out of file descriptors. |
| A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning. |
| ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled; |
| A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation. |
| An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation. |
| Incorrect Behaviour of Views with TCP PROXY Requests |
| Insufficient Validation of Names During AXFR |
| Insufficient Validation of Autoprimary SOA Queries |
| Concurrency and locking defects in GSS-TSIG |
| Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail |
| An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend. |
