Amplification Attacks

PowerDNS Recursor is vulnerable toamplification attacks. It does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafte...

Denial Of Service (DoS)

PowerDNS Authoritative Server is vulnerable to denial of service. A memory leak occurs while parsing malformed records which can lead to an application crash...

Security Bulletin: Smart Cloud Entry is affected by ISC BIND vulnerabilities

Summary Multiple vulnerabilitieshave been identified in ISC BIND. ISC BIND shipped with IBM SmartCloud Entry Appliance. Vulnerability Details CVEID: CVE-2017-3142 DESCRIPTION: ISC BIND could allow a remote attacker to bypass security restrictions, caused by an error when an attacker can send and...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

unbound: amplification of an incoming query into a large number of queries directed to a target

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

Updated pdns-recursor packages fix security vulnerabilities

Updated pdns-recursor packages fix security vulnerabilities: An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the...

New DNS Vulnerability Lets Attackers Launch Large-Scale DDoS Attacks

Israeli cybersecurity researchers have disclosed details about a new flaw impacting DNS protocol that can be exploited to launch amplified, large-scale distributed denial-of-service DDoS attacks to takedown targeted websites. Called NXNSAttack, the flaw hinges on the DNS delegation mechanism to...

New DNS Vulnerability Lets Attackers Launch Large-Scale DDoS Attacks

Israeli cybersecurity researchers have disclosed details about a new flaw impacting DNS protocol that can be exploited to launch amplified, large-scale distributed denial-of-service DDoS attacks to takedown targeted websites. Called NXNSAttack, the flaw hinges on the DNS delegation mechanism to...

CVE-2020-12662

A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive...

CVE-2020-10995

PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted rep...

Design/Logic Flaw

PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted rep...

powerdns-recursor -- multiple vulnerabilities

PowerDNS Team reports: CVE-2020-10995: An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between...

Open-Xchange: Recursor accepts unsigned, empty NXDOMAINs in secure zones

Hi! This is a slightly edited version of the email I sent to the project's security contacts on 2020-04-21. Open-Xchange confirmed it and asked me to resubmit it here. --- Subject: Recursor may be accepting unsigned, empty NXDOMAINs in secure zones I can easily reproduce this against Cloudflare's...

UBUNTU-CVE-2015-5230

The DNS packet parsing/generation code in PowerDNS aka pdns Authoritative Server 3.4.x before 3.4.6 allows remote attackers to cause a denial of service crash via crafted query packets...

CVE-2015-5230

The DNS packet parsing/generation code in PowerDNS aka pdns Authoritative Server 3.4.x before 3.4.6 allows remote attackers to cause a denial of service crash via crafted query packets...

PowerDNS Authoritative Server 4.x < 4.2.0 DoS Vulnerability

PowerDNS Authoritative Server is prone to a denial of service DoS vulnerability when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave. SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by...

CVE-2019-10203

PowerDNS Authoritative daemon , pdns versions 4.0.x before 4.0.9, 4.1.x before 4.1.11, exiting when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave leads to DoS...