unbound-utils vulnerabilities (Red Hat)
45 vulnerabilities.
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unbound-utilsRed Hat Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC 5.3 Medium -
unbound-utilsRed Hat Use-after-free in DoH stream cleanup code path 5.9 Medium -
unbound-utilsRed Hat CNAME synthesis could lead to heap corruption 8.4 High -
unbound-utilsRed Hat Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY 9.1 Critical -
unbound-utilsRed Hat Possible heap buffer overflow during DNSSEC canonicalization 7.5 High -
unbound-utilsRed Hat Possible degradation of service from continuous queries on the same TCP/DoT connection 5.3 Medium -
unbound-utilsRed Hat Use-after-free in DoQ stream output buffer on reset re-transmission 6.5 Medium -
unbound-utilsRed Hat Possible ZONEMD verification bypass window 4.4 Medium -
unbound-utilsRed Hat 'serve-expired' can bypass Unbound 'wait-limit' 3.7 Low -
unbound-utilsRed Hat Degradation of resolution service when 'discard-timeout' and 'serve-expired-client-timeout' are combined in unusual configuration 5.9 Medium -
unbound-utilsRed Hat Possible heap buffer overflow when validator canonicalizes RDATA that contains domain name 4.8 Medium -
unbound-utilsRed Hat Remote DNS-over-QUIC (DoQ) flow-control assertion failure in libngtcp2 5.9 Medium -
unbound-utilsRed Hat Packet of death for a DNSCrypt misconfigured Unbound 5.9 Medium -
unbound-utilsRed Hat 'dns-error-reporting: yes' leads to stack buffer overflow 7.5 High -
unbound-utilsRed Hat 'serve-expired-client-timeout' and 'response-ip' CNAME redirect could lead to a crash 5.9 Medium -
unbound-utilsRed Hat Privacy/configuration issue when adding local data in views through 'unbound-control' 3.1 Low -
unbound-utilsRed Hat DNS Cookie bypass when combined with proxy-protocol use 3.7 Low -
unbound-utilsRed Hat Memory corruption could lead to crash and denial of service 5.9 Medium -
unbound-utilsRed Hat Possible cache poisoning attack by mapping source port population per thread 5.7 Medium -
unbound-utilsRed Hat Attacker supplied '0.0.0.0'/'::' glue triggers defensive full-cache flush 5.3 Medium -
unbound-utilsRed Hat BOGUS configured primary hostname accepted for XFR in auth/rpz zones 6.5 Medium -
unbound-utilsRed Hat 'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL 6.3 Medium -
unbound-utilsRed Hat Possible heap use-after-free in an error path when a DoT forwarded query is jostled out 5.9 Medium -
unbound-utilsRed Hat 'max-global-quota' reset by DNSSEC validation restarts 5.3 Medium -
unbound-utilsRed Hat A wildcard replay, as another piece of data, triggers poisoning in the serve expired reply path 3.7 Low -
unbound-utilsRed Hat Cross-zone wildcard cache poisoning via RRSIG.labels manipulation 7.5 High -
unbound-utilsRed Hat Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN 3.7 Low -
unbound-utilsRed Hat 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 -
unbound-utilsRed Hat Degradation of resolution service from improperly accounted client-terminated DNS-over-QUIC queries 3.7 Low -
unbound-utilsRed Hat Packet of death for DNSCrypt over TCP 7.5 High -
unbound-utilsRed Hat Remote DNS-over-QUIC denial of service due to `quic-size` budget bypass 7.5 High -
unbound-utilsRed Hat Assertion in libngtcp2 when under pressure in high concurrency DNS-over-QUIC environments 5.9 Medium -
unbound-utilsRed Hat Use after free and crash under special conditions in RPZ code 4.6 Medium -
unbound-utilsRed Hat Unbounded name compression in certain cases causes degradation of service 6.9 Medium -
unbound-utilsRed Hat Possible cache poisoning via promiscuous records for the authority section 5.7 Medium -
unbound-utilsRed Hat Crash during DNSSEC validation of malicious content 8.7 High -
unbound-utilsRed Hat Heap overflow with multiple NSID, COOKIE, PADDING EDNS options 8.7 High -
unbound-utilsRed Hat Degradation of service with unbounded NSEC3 hash calculations 6.9 Medium -
unbound-utilsRed Hat Jostle logic bypass degrades resolution performance 6.9 Medium -
unbound-utilsRed Hat Long list of incoming EDNS options degrades performance 6.6 Medium -
unbound-utilsRed Hat Another 'ghost domain names' attack variant 6.6 Medium -
unbound-utilsRed Hat Possible arbitrary code execution during DNSSEC validation 9.1 Critical -
unbound-utilsRed Hat Packet of death with DNSCrypt 4.6 Medium -
unbound-utilsRed Hat Possible domain hijacking via promiscuous records in the authority section 5.7 Medium -
unbound-utilsRed Hat The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service ... 7.5 High