Ldns

ldns

Vendor: Nlnetlabs • 8 CVEs

CVEs (8)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2026-10846 1Nlnetlabs 1Ldns Jun 17, 2026 Jun 10, 2026 8.2 HIGH· v4 7.5 HIGH· v3 N/A· v2 NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermor...Show more NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.Show less
CVE-2020-19861 1Nlnetlabs 1Ldns Jun 17, 2026 Jan 21, 2022 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be...Show more When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.Show less
CVE-2020-19860 1Nlnetlabs 1Ldns Jun 17, 2026 Jan 21, 2022 N/A· v4 6.5 MEDIUM· v3 4.3 MEDIUM· v2 When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.
CVE-2017-1000232 1Nlnetlabs 1Ldns May 13, 2026 Nov 17, 2017 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.
CVE-2017-1000231 1Nlnetlabs 1Ldns May 13, 2026 Nov 17, 2017 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors.
CVE-2014-3209 1Nlnetlabs 1Ldns May 6, 2026 Nov 16, 2014 N/A· v4 N/A· v3 2.1 LOW· v2 The ldns-keygen tool in ldns 1.6.x uses the current umask to set the privileges of the private key, which might allow local users to obtain the private key by reading the file.
CVE-2011-3581 1Nlnetlabs 1Ldns Apr 29, 2026 Nov 4, 2011 N/A· v4 N/A· v3 6.8 MEDIUM· v2 Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) wi...Show more Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) with an unknown type containing input that is longer than a specified length.Show less
CVE-2009-1086 1Nlnetlabs 1Ldns Apr 23, 2026 Mar 25, 2009 N/A· v4 N/A· v3 6.4 MEDIUM· v2 Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record...Show more Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.Show less