netty-resolver-dns: Netty DNS resolver: DNS Cache Poisoning via predictable transaction IDs

A flaw was found in Netty's DNS resolver component. This vulnerability arises from the use of a predictable pseudo-random number generator PRNG for DNS transaction IDs and a static User Datagram Protocol UDP source port. This combination significantly reduces the randomness of DNS queries, making...

PT-2026-47609

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.135.Final Netty versions prior to 4.2.15.Final Description The DNS resolver in the io.netty.resolver.dns module uses a predictable Pseudo-Random Number Generator PRNG for generating DNS transaction IDs and defaults ...

EulerOS 2.0 SP10 : avahi (EulerOS-SA-2026-1301)

According to the versions of the avahi package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after...

EulerOS Virtualization 2.10.1 : avahi (EulerOS-SA-2026-1529)

According to the versions of the avahi package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them...

Security update for avahi

This update for avahi fixes the following issues: CVE-2024-52616: Fixed Avahi Wide-Area DNS Predictable Transaction IDs bsc1233420 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch". Alternatively you can run the...

Microsoft Windows DNS Server Spoofing - Ver2 (CVE-2007-3898)

There exits a vulnerability in Microsoft Windows DNS Server. The flaw is caused by predictable transaction identifiers in DNS requests generated. A remote attacker may leverage this vulnerability to use spoofed DNS responses to poison the DNS cache on the target system...

Squid Proxy DNS Response Spoofing (CVE-2005-1519; CVE-2007-3898)

There exists a vulnerability in Squid Web Proxy Cache in the processing of DNS lookups. The flaw is caused by predictable transaction identifiers in DNS requests generated by Squid. A remote attacker may leverage this vulnerability to use spoofed DNS responses to poison the DNS cache on the targe...