unbound vulnerabilities (Ubuntu)
78 vulnerabilities.
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unboundUbuntu DNS-over-QUIC (DoQ) path-migration can lead to use-after-free on multi-threaded deployments. 7.5 High -
unboundUbuntu Aggregate DNS name chained pointer decompression work leads to degradation of service. 5.3 Medium -
unboundUbuntu Possible insecure NXDOMAIN for non-existing records under a configured island trust anchor underneath an insecure parent. 6.5 Medium -
unboundUbuntu Bypass of a configured island trust anchor underneath an insecure parent from an atacker-controlled NSEC record. 3.7 Low -
unboundUbuntu Possible cache poisoning vulnerability via a cache side-channel exposed by 'unwanted-reply-threshold' 5.3 Medium -
unboundUbuntu Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC 5.3 Medium -
unboundUbuntu Use-after-free in DoH stream cleanup code path 5.9 Medium -
unboundUbuntu CNAME synthesis could lead to heap corruption 8.4 High -
unboundUbuntu Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY 9.1 Critical -
unboundUbuntu Possible heap buffer overflow during DNSSEC canonicalization 7.5 High -
unboundUbuntu Possible degradation of service from continuous queries on the same TCP/DoT connection 5.3 Medium -
unboundUbuntu Use-after-free in DoQ stream output buffer on reset re-transmission 6.5 Medium -
unboundUbuntu Possible ZONEMD verification bypass window 4.4 Medium -
unboundUbuntu 'serve-expired' can bypass Unbound 'wait-limit' 3.7 Low -
unboundUbuntu Degradation of resolution service when 'discard-timeout' and 'serve-expired-client-timeout' are combined in unusual configuration 5.9 Medium -
unboundUbuntu Possible heap buffer overflow when validator canonicalizes RDATA that contains domain name 4.8 Medium -
unboundUbuntu Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2 5.9 Medium -
unboundUbuntu Packet of death for a DNSCrypt misconfigured Unbound 5.9 Medium -
unboundUbuntu 'dns-error-reporting: yes' leads to stack buffer overflow 7.5 High -
unboundUbuntu 'serve-expired-client-timeout' and 'response-ip' CNAME redirect could lead to a crash 5.9 Medium -
unboundUbuntu Privacy/configuration issue when adding local data in views through 'unbound-control' 3.1 Low -
unboundUbuntu DNS Cookie bypass when combined with proxy-protocol use 3.7 Low -
unboundUbuntu Memory corruption could lead to crash and denial of service 5.9 Medium -
unboundUbuntu Possible cache poisoning attack by mapping source port population per thread 5.7 Medium -
unboundUbuntu Attacker supplied '0.0.0.0'/'::' glue triggers defensive full-cache flush 5.3 Medium -
unboundUbuntu BOGUS configured primary hostname accepted for XFR in auth/rpz zones 6.5 Medium -
unboundUbuntu 'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL 6.3 Medium -
unboundUbuntu Possible heap use-after-free in an error path when a DoT forwarded query is jostled out 5.9 Medium -
unboundUbuntu 'max-global-quota' reset by DNSSEC validation restarts 5.3 Medium -
unboundUbuntu A wildcard replay, as another piece of data, triggers poisoning in the serve expired reply path 3.7 Low -
unboundUbuntu Cross-zone wildcard cache poisoning via RRSIG.labels manipulation 7.5 High -
unboundUbuntu Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN 3.7 Low -
unboundUbuntu Libunbound applications configured with 'unwanted-reply-threshold' could eventually be abruptly terminated 5.9 Medium -
unboundUbuntu Extra fix for CVE-2026-40622 to also clamp the TTL of A/AAAA records disallowing a one-time 'ghost domain' delegation renewal via glue records 3.7 Low -
unboundUbuntu Degradation of resolution service from improperly accounted client-terminated DNS-over-QUIC queries 3.7 Low -
unboundUbuntu Packet of death for DNSCrypt over TCP 7.5 High -
unboundUbuntu Remote DNS-over-QUIC denial of service due to `quic-size` budget bypass 7.5 High -
unboundUbuntu Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments 5.9 Medium -
unboundUbuntu Use after free and crash under special conditions in RPZ code 4.6 Medium -
unboundUbuntu Unbounded name compression in certain cases causes degradation of service 6.9 Medium -
unboundUbuntu Possible cache poisoning via promiscuous records for the authority section 5.7 Medium -
unboundUbuntu Crash during DNSSEC validation of malicious content 8.7 High -
unboundUbuntu Heap overflow with multiple NSID, COOKIE, PADDING EDNS options 8.7 High -
unboundUbuntu Degradation of service with unbounded NSEC3 hash calculations 6.9 Medium -
unboundUbuntu Jostle logic bypass degrades resolution performance 6.9 Medium -
unboundUbuntu Long list of incoming EDNS options degrades performance 6.6 Medium -
unboundUbuntu Another 'ghost domain names' attack variant 6.6 Medium -
unboundUbuntu Possible arbitrary code execution during DNSSEC validation 9.1 Critical -
unboundUbuntu Packet of death with DNSCrypt 4.6 Medium -
unboundUbuntu Possible domain hijacking via promiscuous records in the authority section 5.7 Medium - Show olderLoading…