Total
28 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2014-8602 | 3 Canonical, Debian, Nlnetlabs | 3 Ubuntu Linux, Debian Linux, Unbound | 2024-11-21 | 4.3 MEDIUM | N/A |
| iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals. | |||||
| CVE-2011-1922 | 1 Nlnetlabs | 1 Unbound | 2024-11-21 | 4.3 MEDIUM | N/A |
| daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling. | |||||
| CVE-2010-0969 | 1 Nlnetlabs | 1 Unbound | 2024-11-21 | 5.0 MEDIUM | N/A |
| Unbound before 1.4.3 does not properly align structures on 64-bit platforms, which allows remote attackers to cause a denial of service (daemon crash) via unspecified vectors. | |||||
| CVE-2009-4008 | 1 Nlnetlabs | 1 Unbound | 2024-11-21 | 5.0 MEDIUM | N/A |
| Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query. | |||||
| CVE-2009-3602 | 1 Nlnetlabs | 1 Unbound | 2024-11-21 | 7.5 HIGH | N/A |
| Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses. | |||||
| CVE-2019-25042 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25041 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 5.0 MEDIUM | 7.5 HIGH |
| ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25040 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 5.0 MEDIUM | 7.5 HIGH |
| ** DISPUTED ** Unbound before 1.9.5 allows an infinite loop via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25039 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25038 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in a size calculation in dnscrypt/dnscrypt.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25037 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 5.0 MEDIUM | 7.5 HIGH |
| ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure and denial of service in dname_pkt_copy via an invalid packet. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25036 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 5.0 MEDIUM | 7.5 HIGH |
| ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25035 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25034 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25033 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25032 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 7.5 HIGH | 9.8 CRITICAL |
| ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in the regional allocator via regional_alloc. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited. | |||||
| CVE-2019-25031 | 2 Debian, Nlnetlabs | 2 Debian Linux, Unbound | 2024-08-05 | 4.3 MEDIUM | 5.9 MEDIUM |
| ** DISPUTED ** Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation. | |||||
| CVE-2023-50387 | 8 Fedoraproject, Isc, Microsoft and 5 more | 13 Fedora, Bind, Windows Server 2008 and 10 more | 2024-06-10 | N/A | 7.5 HIGH |
| 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. | |||||
| CVE-2022-3204 | 2 Fedoraproject, Nlnetlabs | 2 Fedora, Unbound | 2024-02-04 | N/A | 7.5 HIGH |
| A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for a record that relies on those unresponsive nameservers. The attack can cause a resolver to spend a lot of time/resources resolving records under a malicious delegation point where a considerable number of unresponsive NS records reside. It can trigger high CPU usage in some resolver implementations that continually look in the cache for resolved NS records in that delegation. This can lead to degraded performance and eventually denial of service in orchestrated attacks. Unbound does not suffer from high CPU usage, but resources are still needed for resolving the malicious delegation. Unbound will keep trying to resolve the record until hard limits are reached. Based on the nature of the attack and the replies, different limits could be reached. From version 1.16.3 on, Unbound introduces fixes for better performance when under load, by cutting opportunistic queries for nameserver discovery and DNSKEY prefetching and limiting the number of times a delegation point can issue a cache lookup for missing records. | |||||
| CVE-2022-30699 | 2 Fedoraproject, Nlnetlabs | 2 Fedora, Unbound | 2024-02-04 | N/A | 6.5 MEDIUM |
| NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten. | |||||