759 matches found
CVE-2026-11622
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...
CVE-2026-11331
An attacker who knows or guesses that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of...
CVE-2026-12617: Reachable Assertion
The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A...
CVE-2026-11331: Improper Filtering of Special Elements
An attacker who knows or guesses that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of...
CVE-2026-11622: Allocation of Resources Without Limits or Throttling
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...
PT-2026-65425
The updated bind packages fix a security vulnerability: When BIND 9 was configured to use DNS64 and encounters a DNAME redirect, it could end up using freed memory for the DNS response owner name. This caused the response to contain corrupted data...
OESA-2026-2759 dhcp security update
The Dynamic Host Configuration Protocol DHCP is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks. Security Fixes: BIND...
AZL-87102 CVE-2026-5950 affecting package bind for versions less than 9.20.23-1
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 throu...
AZL-87099 CVE-2026-5947 affecting package bind for versions less than 9.20.23-1
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG0, it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached as would occur during a query...
AZL-87096 CVE-2026-5946 affecting package bind for versions less than 9.20.23-1
Multiple flaws have been identified in named related to the handling of DNS messages whose CLASS is not Internet IN — for example, CHAOS or HESIOD, or DNS messages that specify meta-classes ANY or NONE in the question section. Specially crafted requests reaching the affected code paths — recursio...
AZL-87093 CVE-2026-3593 affecting package bind for versions less than 9.20.23-1
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...
CVE-2026-5946
Multiple flaws have been identified in "named" related to the handling of DNS messages whose CLASS is not Internet "IN" — for example, "CHAOS" or "HESIOD", or DNS messages that specify meta-classes "ANY" or "NONE" in the question section. Specially crafted requests reaching the affected code path...
CVE-2026-5950: Unchecked Input for Loop Condition
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 throu...
CVE-2026-3593: Use After Free
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...
CVE-2026-5946: Improper Input Validation
Multiple flaws have been identified in named related to the handling of DNS messages whose CLASS is not Internet IN — for example, CHAOS or HESIOD, or DNS messages that specify meta-classes ANY or NONE in the question section. Specially crafted requests reaching the affected code paths — recursio...
AZL-80984 CVE-2026-3119 affecting package bind for versions less than 9.20.21-1
Under certain conditions, named may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature TSIG from a key declared in the named configuration. This issue affects BIND 9 versions 9.20....
AZL-80987 CVE-2026-3591 affecting package bind for versions less than 9.20.21-1
A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...
CVE-2026-3119: Reachable Assertion
Under certain conditions, named may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature TSIG from a key declared in the named configuration. This issue affects BIND 9 versions 9.20....
CVE-2026-3591: Return of Stack Variable Address
A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...
UBUNTU-CVE-2026-3591
A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...