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High 7.5
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
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Low 3.7
Wildcard CNAME proof validation bypass
The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.
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Low 3.7
Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack
If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the child records are used immediately if not expired and thus valid, or the records…
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Medium 5.3
Reject more queries with invalid header values
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
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Medium 5.9
Spoofed answers can mark an authoritative non-EDNS capable
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.
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Medium 5.3
ZONEMD validation can be bypassed
An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.
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Medium 5.9
Missing input validation for catalog zones
Incomplete validation of the SOA record present in a catalog zone might lead to a crash.
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Medium 5.9
Insufficient input validation in ZoneToCache
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.
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Medium 5.3
Information about ECS zero scoped answers might leak to clients that use a specific ECS
ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled;
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High 7.5
ZoneToCache can poison the cache
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.
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Medium 4.3
Insufficient input validation of internal web server
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.
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Medium 5.9
Insufficient validation of cookie reply
An attacker can send replies that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service. Cookies are disabled by default.
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Medium 5.9
Null pointer accces in aggressive NSEC(3) cache
A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
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Medium 5.3
Insufficient input validation of internal webserver
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.
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Medium 5.0
Concurrent modification of RPZ data can lead to denial of servce
Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.
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Medium 5.3
Crafted zones can cause increased resource usage
By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC(3) caches.
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Medium 5.3
Insufficient input validation of internal webserver
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.
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Medium 5.3
Unbounded memory allocation by internal web server
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.
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Medium 4.4
Insufficient validation of zonemd record
If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.
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Medium 4.4
Null pointer dereference in RPZ transfer
An RPZ sent by a malicious authoritative server can result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.
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Medium 6.5
Crafted delegations or IP fragments can poison cached delegations in Recursor
Crafted delegations or IP fragments can poison cached delegations in Recursor.
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High 8.2
Crafted delegations or IP fragments can poison cached delegations in Recursor
Crafted delegations or IP fragments can poison cached delegations in Recursor.
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Medium 5.3
Crafted zones can lead to increased incoming network traffic
Crafted zones can lead to increased incoming network traffic.
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Medium 5.3
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
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Medium 5.3
Internal logic flaw in cache management can lead to a denial of service in PowerDNS Recursor
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
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High 7.5
Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
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High 7.5
A Recursor configured to send out ECS enabled queries can be sensitive to spoofing attempts
An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled…
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High 7.5
A crafted zone can lead to an illegal memory access in the PowerDNS Recursor
An attacker can publish a zone containing specific Resource Record Sets. Processing and caching results for these sets can lead to an illegal memory accesses and crash of the Recursor, causing a denial of service. The remedy is: upgrade to the patched 5.2.1 v…
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High 7.5
Crafted responses can lead to a denial of service due to cache inefficiencies in the Recursor
An attacker can publish a zone containing specific Resource Record Sets. Repeatedly processing and caching results for these sets can lead to a denial of service.
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High 7.5
Crafted responses can lead to a denial of service in Recursor if recursive forwarding is configured
A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor. The default configuration of the Recursor does not use recursive forwarding and is not affected.
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High 7.5
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote att…
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High 7.5
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to …
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Low 3.4
Deterred spoofing attempts can lead to authoritative servers being marked unavailable
Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.
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High 7.5
A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves D…
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Medium 6.5
PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup up…
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Unscored —
In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before …
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Unscored —
An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attack…
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Unscored —
In PowerDNS Recursor versions up to and including 4.3.1, 4.2.2 and 4.1.16, the ACL restricting access to the internal w…
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Unscored —
PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An i…
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Unscored —CVE-2020-10030 EPSS 24%
An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privil…