1845 matches found
K000163001: NLnet Labs Unbound vulnerability CVE-2026-42923
Security Advisory Description NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the DNSSEC validator where the code path to consult the negative cache for DS records does not take into account the limit on NSEC3 hash calculations introduced in 1.19.1. This leads to...
bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field
The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone...
bind: bind9: Incorrect acceptance of NSEC3 records
BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses...
bind: bind9: Potential memory usage beyond configured limits
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...
Important: Red Hat Security Advisory: bind security update
An update for bind is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...
bind: bind9: Unexpected exit with NSEC and NSEC3 both present
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof...
USN-8648-1 bind9 vulnerabilities
It was discovered that Bind incorrectly accepted NSEC3 records whose signer name did not match the owning zone. A remote attacker could possibly use this issue to perform NSEC3 impersonation attacks, bypassing DNSSEC validation. CVE-2026-10723 It was discovered that Bind incorrectly handled Key...
CVE-2026-50243
A flaw in Unbound's respip module fails to verify the security status of incoming DNS answers when using response-ip rules or RPZ files. A remote attacker can exploit this by spoofing DNS answers to bypass DNSSEC protections and trigger unauthorized rewrites, redirecting clients to unintended...
CVE-2026-44687
An off-by-one error in Unbound's default harden-below-nxdomain logic can lead to a denial of service. When an intermediate label under a DNSSEC-signed zone is queried, the flaw incorrectly bypasses configured stub or forward zones, disrupting their name resolution. Mitigation Disable the...
RLSA-2026:55841 Important: unbound security update
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 unbound: Unbound: Denial of Service via malformed EDNS Report-Channel opti...
unbound security update
An update is available for unbound. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The unbound packages provide a validating, recursive, and caching DNS or DNSS...
unbound security update
An update is available for unbound. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The unbound packages provide a validating, recursive, and caching DNS or DNSS...
unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes
A flaw was found in Unbound. Insufficient validation of the RRSIG.Labels field, combined with premature cache writes during RFC 8198 aggressive NSEC processing, can lead to cache poisoning. This vulnerability allows a malicious actor, controlling a single delegated zone, to poison arbitrary sibli...
bind security update
An update is available for bind. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The Berkeley Internet Name Domain BIND is an implementation of the Domain Name...
RLSA-2026:55437 Important: bind security update
The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...
bind9.18 security update
An update is available for bind9.18. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Na...
Important: Red Hat Security Advisory: bind9.18 security update
An update for bind9.18 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...
bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards
It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...
bind: bind9: Unexpected exit with NSEC and NSEC3 both present
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof...