ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than...

EulerOS 2.0 SP10 : avahi (EulerOS-SA-2026-1327)

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 2.0 SP12 : avahi (EulerOS-SA-2026-1061)

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 Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS...

EulerOS Virtualization 2.13.1 : avahi (EulerOS-SA-2025-2619)

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 Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where...

Unity Linux 20.1050e / 20.1070e Security Update: avahi (UTSA-2025-991257)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991257 advisory. A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are...

EulerOS 2.0 SP13 : avahi (EulerOS-SA-2025-2493)

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 Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS...

EulerOS 2.0 SP13 : avahi (EulerOS-SA-2025-2514)

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 Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS...

EulerOS 2.0 SP11 : avahi (EulerOS-SA-2025-2473)

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 Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS...

avahi: Avahi Wide-Area DNS Uses Constant Source Port

A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected...

ALPINE-CVE-2024-52615

A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected...

DEBIAN-CVE-2024-52615

A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected...

CVE-2024-52615

A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected...

UBUNTU-CVE-2024-52615

A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected...

SUSE CVE-2008-3905

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than...

UBUNTU-CVE-2021-3448

A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ...

FreeBSD-SN-02:01

-----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SN-02:01 Security Notice FreeBSD, Inc. Topic: security issues in ports Announced: 2002-03-30 I. Introduction Several ports in the FreeBSD Ports Collection are affected by...