Validation Bypass

PowerDNS Recursor is vulnerable validation bypass. The answer section of a NXDOMAIN response lacking an SOA is not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

nxdomain-redirect DNS DoS

The vulnerability of the nxdomain-redirect DNS server’s BIND implementation lies in the use of the assert function or similar operators. Exploiting this vulnerability allows a remote attacker to cause service interruptions...

PT-2020-13803

Name of the Vulnerable Software and Affected Versions D-Link DSL 2730-U versions IN 1.10 through IN 1.11 D-Link DIR-600M version 3.04 Description The issue allows remote attackers to provide valid DNS responses for names that would have otherwise resulted in an NXDOMAIN error. This is possible by...

MGASA-2020-0223 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...

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...

[SECURITY] [DSA 4691-1] pdns-recursor security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4691-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 21, 2020 https://www.debian.org/security/faq -...

CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

DEBIAN-CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

UBUNTU-CVE-2020-12244

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

PT-2020-3620

Name of the Vulnerable Software and Affected Versions PowerDNS Recursor versions 4.1.0 through 4.3.0 Description The issue concerns a lack of proper validation in the SyncRes::processAnswer function for records in the answer section of a NXDOMAIN response that lacks an SOA. This allows an attacke...

CVE-2020-12244: Improper Verification of Cryptographic Signature

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation...

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...

CVE-2019-6467

A flaw was found in the way "nxdomain-redirect" feature was implemented in bind. An attacker could use this flaw on a server with a vulnerable configuration to cause bind to exit, denying service to other clients. Mitigation Exploitation of this defect can be effectively prevented by disabling th...

EulerOS Virtualization for ARM 64 3.0.6.0 : bind (EulerOS-SA-2020-1355)

According to the versions of the bind packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespac...

Huawei EulerOS: Security Advisory for bind (EulerOS-SA-2020-1355)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for bind (EulerOS-SA-2020-1141)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2019-6468

In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet ECS features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIN...

EulerOS Virtualization for ARM 64 3.0.3.0 : unbound (EulerOS-SA-2019-2341)

According to the version of the unbound package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability : - A flaw was found in the way unbound validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC...