CVE-2026-12617

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...

netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation

A flaw was found in Netty's DnsResolveContext. This vulnerability allows a remote attacker to achieve information disclosure or data manipulation by crafting malicious DNS responses. The flaw occurs because the DnsResolveContext fails to validate the origin bailiwick of CNAME records in DNS...

netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation

A flaw was found in Netty's DnsResolveContext. This vulnerability allows a remote attacker to achieve information disclosure or data manipulation by crafting malicious DNS responses. The flaw occurs because the DnsResolveContext fails to validate the origin bailiwick of CNAME records in DNS...

EUVD-2026-36450

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DnsResolveContext fails to validate the origin bailiwick of CNAME records in DNS responses. Versions 4.1.135.Final and 4.2.15.Final patch the issue...

Insufficient Verification of Data Authenticity

Overview Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity due to missing validation of the origin of CNAME records in DNS responses within the DnsResolveContext function. An attacker can inject unauthorized DNS records by supplying malicious DNS...

BIT-GOLANG-2026-33811 Crash when handling long CNAME response in net

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

Security update for avahi

This update for avahi fixes the following issue: CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record bsc1257235. Patch Instructions: To install this SUSE update use the SUSE recommended installation metho...

SUSE-SU-2026:1441-1 Security update for avahi

This update for avahi fixes the following issue: - CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record bsc1257235...

FTL 注入漏洞

FTL is an open-source network advertising interception and statistics tool developed by Pi-hole. Versions of FTL from 6.0 to 6.6 had a injection vulnerability. This vulnerability stemmed from the DNS CNAME record configuration parameters, allowing authenticated attackers to inject arbitrary dnsma...

Avahi security vulnerability

Avahi is a set of open-source local service discovery tools for Linux. Versions of Avahi 0.9rc2 and earlier contained security vulnerabilities. These vulnerabilities stemmed from the sending of mDNS responses that included recursive CNAME records, which could lead to segmentation violations and...

ALPINE-CVE-2025-68468

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they...

CVE-2025-68471

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart...

EUVD-2025-206278

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart...

CVE-2025-68471 Avahi has a reachable assertion in lookup_start

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart...

CVE-2025-68468 Avahi has a reachable assertion in lookup_multicast_callback

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they...

CVE-2025-68468 Avahi has a reachable assertion in lookup_multicast_callback

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they...

CVE-2025-68468 Avahi has a reachable assertion in lookup_multicast_callback

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they...

DNS Dangling Record

Deploying web applications often require developers or system administrators to configure DNS records to target a third party service. Most common scenarios include to either configure a canonical name record CNAME or to declare specific name server records NS to delegate a specific DNS zone...

PowerDNS Recursor Denial of Service Vulnerability (CNVD-2018-16310)

PowerDNS Recursor aka pdnsrecursor is a domain name resolution server from the Dutch company PowerDNS. A denial of service vulnerability exists in the resolution of authorization answers in PowerDNS Recursor versions prior to 4.0.8. An attacker can exploit this vulnerability to cause a denial of...

bind: Processing a response containing CNAME or DNAME with unusual order can crash resolver

A denial of service flaw was found in the way BIND handled a query response containing CNAME or DNAME resource records in an unusual order. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS response...