Debian Pdns-Recursor vulnerabilities

CVE-2023-50387 [HIGH] CVE-2023-50387: bind9 - Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and r... 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 eval

CVE-2023-50868 [HIGH] CVE-2023-50868: bind9 - The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276... The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash

CVE-2015-1868 [HIGH] CVE-2015-1868: pdns - The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3... The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and 3.7.x before 3.7.2 and Authoritative (Auth) Server 3.2.x, 3.3.x before 3.3.2, and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a name that refers to itself. Scope: local bookworm: resolved (fixed in 3.4.4-1) bu

CVE-2020-10030 [HIGH] CVE-2020-10030: pdns-recursor - An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It... An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname

CVE-2018-16855 [HIGH] CVE-2018-16855: pdns-recursor - An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote... An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash. Scope: local bookworm: resolved (fixed in 4.1.8-1) bullseye: resolved (fixed in 4.1.8-1) forky: resolved (fixed in 4.

CVE-2017-15120 [HIGH] CVE-2017-15120: pdns-recursor - An issue has been found in the parsing of authoritative answers in PowerDNS Recu... An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service. Scope: local bookworm: resolved (fixed in 4.1.0-1) bullseye: resolve

CVE-2009-4009 [CRITICAL] CVE-2009-4009: pdns-recursor - Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to c... Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted packets. Scope: local bookworm: resolved (fixed in 3.1.7.2-1) bullseye: resolved (fixed in 3.1.7.2-1) forky: resolved (fixed in 3.1.7.2-1) sid: resolved (fixed in 3.1.7.2-1) trixie: resolved (f

CVE-2015-5311 [MEDIUM] CVE-2015-5311: pdns - PowerDNS (aka pdns) Authoritative Server 3.4.4 before 3.4.7 allows remote attack... PowerDNS (aka pdns) Authoritative Server 3.4.4 before 3.4.7 allows remote attackers to cause a denial of service (assertion failure and server crash) via crafted query packets. Scope: local bookworm: resolved (fixed in 3.4.7-1) bullseye: resolved (fixed in 3.4.7-1) forky: resolved (fixed in 3.4.7-1) sid: resolved (fixed in 3.4.7-1) trixie: resolved (fixed in 3.4.7-1)

CVE-2014-8601 [MEDIUM] CVE-2014-8601: pdns-recursor - PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows ... PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers to cause a denial of service ("performance degradations") via a large or infinite number of referrals, as demonstrated by resolving domains hosted by ezdns.it. Scope: local bookworm: resolved (fixed in 3.6.2-1) bullseye: resolved (fixed in 3.6.2-1) forky: resolved

CVE-2016-7068 [MEDIUM] CVE-2016-7068: pdns - An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recurs... An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the Powe

CVE-2025-59023 [HIGH] CVE-2025-59023: pdns-recursor - Crafted delegations or IP fragments can poison cached delegations in Recursor. Crafted delegations or IP fragments can poison cached delegations in Recursor. Scope: local bookworm: open bullseye: open forky: resolved (fixed in 5.3.1-1) sid: resolved (fixed in 5.3.1-1) trixie: resolved (fixed in 5.2.6-0+deb13u1)

CVE-2009-4010 [HIGH] CVE-2009-4010: pdns-recursor - Unspecified vulnerability in PowerDNS Recursor before 3.1.7.2 allows remote atta... Unspecified vulnerability in PowerDNS Recursor before 3.1.7.2 allows remote attackers to spoof DNS data via crafted zones. Scope: local bookworm: resolved (fixed in 3.1.7.2-1) bullseye: resolved (fixed in 3.1.7.2-1) forky: resolved (fixed in 3.1.7.2-1) sid: resolved (fixed in 3.1.7.2-1) trixie: resolved (fixed in 3.1.7.2-1)

CVE-2020-12244 [HIGH] CVE-2020-12244: pdns-recursor - An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records i... An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation. Scope: local bookworm: resolved (fixed in 4.3.1-1) bullseye: resolved (fixed in 4.3.1-1) forky: resolved (fixed in 4.3

CVE-2023-22617 [HIGH] CVE-2023-22617: pdns-recursor - A remote attacker might be able to cause infinite recursion in PowerDNS Recursor... A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1. Scope: local bookworm: resolved (fixed in 4.8.1-1) bullseye: resolved forky: resolved (fixed in 4.8.1-1) sid: resolved (fixed

CVE-2020-25829 [HIGH] CVE-2020-25829: pdns-recursor - An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, ... 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 attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (d

CVE-2022-27227 [HIGH] CVE-2022-27227: pdns - In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x bef... 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 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers. Scope: local bookworm: resolved (fixed in 4.6.1-1) bullseye: open forky: resolve

CVE-2006-4251 [HIGH] CVE-2006-4251: pdns - Buffer overflow in PowerDNS Recursor 3.1.3 and earlier might allow remote attack... Buffer overflow in PowerDNS Recursor 3.1.3 and earlier might allow remote attackers to execute arbitrary code via a malformed TCP DNS query that prevents Recursor from properly calculating the TCP DNS query length. Scope: local bookworm: resolved (fixed in 2.9.20-4) bullseye: resolved (fixed in 2.9.20-4) forky: resolved (fixed in 2.9.20-4) sid: resolved (fixed in 2.9.20-

CVE-2025-59030 [HIGH] CVE-2025-59030: pdns-recursor - An attacker can trigger the removal of cached records by sending a NOTIFY query ... An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP. Scope: local bookworm: open bullseye: open forky: resolved (fixed in 5.3.3-1) sid: resolved (fixed in 5.3.3-1) trixie: resolved (fixed in 5.2.7-0+deb13u1)

CVE-2015-5470 [HIGH] CVE-2015-5470: pdns - The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.... The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-18

CVE-2019-3807 [LOW] CVE-2019-3807: pdns-recursor - An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where r... An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation. Scope: local bookworm: resolved (fixed in 4.1.9-1) bullseye: resolved (fixed in 4.1.9-1) forky: resolve