Product:

Knot_resolver

(Nic)
Repositories

Unknown:

This might be proprietary software.
#Vulnerabilities 14
Date Id Summary Products Score Patch Annotated
2022-09-23 CVE-2022-40188 Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets. Debian_linux, Fedora, Knot_resolver 7.5
2023-10-22 CVE-2023-46317 Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers. Knot_resolver 7.5
2024-02-14 CVE-2023-50387 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records. Fedora, Bind, Windows_server_2008, Windows_server_2012, Windows_server_2016, Windows_server_2019, Windows_server_2022, Windows_server_2022_23h2, Knot_resolver, Unbound, Recursor, Enterprise_linux, Dnsmasq 7.5
2019-07-16 CVE-2019-10190 A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191. Fedora, Knot_resolver 7.5
2019-07-16 CVE-2019-10191 A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol. Fedora, Knot_resolver 7.5
2019-12-16 CVE-2019-19331 knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB). Debian_linux, Knot_resolver 7.5
2021-03-30 CVE-2018-1110 A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service. Knot_resolver 7.5
2018-08-02 CVE-2018-10920 Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache. Knot_resolver N/A
2019-11-05 CVE-2013-5661 Cache Poisoning issue exists in DNS Response Rate Limiting. Bind, Knot_resolver, Nsd, Enterprise_linux N/A
2018-01-22 CVE-2018-1000002 Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay. Knot_resolver N/A