SUSE CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

Knot Resolver < 5.6.0 DoS Vulnerability

Knot Resolver is prone to a denial of service DoS vulnerability. Copyright C 2023 Greenbone Networks GmbH 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-or-later This program is free...

K12331123: NGINX Plus and Open Source vulnerability CVE-2021-23017

Security Advisory Description An issue in NGINX resolver may allow an attacker who is able to forge UDP packets from the specified DNS server to cause a 1-byte memory overwrite, resulting in a worker process crash or other unspecified impact. CVE-2021-23017 Impact A remote attacker can cause a...

K00724442: BIG-IP DNS and GTM DNSSEC security exposure

Security Advisory Description The BIG-IP DNSSEC implementation returns an incorrect NSEC3 record for a DNS query for a resource record type, which does not exist at given name. The incorrect record indicates that only one of TXT/HINFO/RP resource record types exists at given name, even if A or AA...

K07010600: BIND vulnerability CVE-2022-3080

Security Advisory Description By sending specific queries to the resolver, an attacker can cause named to crash. CVE-2022-3080 Impact There is no impact; F5 products are not affected by this vulnerability. Security Advisory Status F5 Product Development has evaluated the currently supported...

K3284: Buffer overflows in stub resolver libraries - CAN-2002-0029

Security Advisory Description Note : Versions that are not listed in this article have not been evaluated for vulnerability to this security advisory. For information about the F5 security policy regarding evaluating older and unsupported versions of F5 products, refer to K4602: Overview of the F...

K79240502: BIG-IP ASM Bot Detection DNS cache does not expire security exposure

Security Advisory Description When BIG-IP ASM Bot Detection is configured, the BIG-IP ASM system performs a reverse DNS lookup to determine if bot traffic classified as legitimate is, in fact, from those services for example, Google. These DNS responses are cached indefinitely until the Traffic...

K2104: Buffer read overflow in DNS resolver libraries - CAN-2002-1146

Security Advisory Description Note : Versions that are not listed in this article have not been evaluated for vulnerability to this security advisory. For information about the F5 security policy regarding evaluating older and unsupported versions of F5 products, refer to K4602: Overview of the F...

K11742512: BIND vulnerability CVE-2022-2795

Security Advisory Description By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service. CVE-2022-2795 Impact A flaw in resolver code can cause name...

K14204: BIND vulnerability CVE-2011-4313

Security Advisory Description ISC reports that query.c in BIND may allow remote attackers to cause a denial-of-service assertion failure and named exit. The vulnerability uses unknown vectors related to recursive DNS queries, error logging, and the caching of an invalid record by the resolver. Th...

K08613310: BIND vulnerability CVE-2017-3145

Security Advisory Description BIND was improperly sequencing cleanup operations on upstream recursion fetch contexts, leading in some cases to a use-after-free error that can trigger an assertion failure and crash in named. CVE-2017-3145 Impact BIG-IP A remote attacker can use this flaw to make...

K1882: Buffer Overflows in DNS Resolver Libraries vulnerability CAN-2002-19

Security Advisory Description Note: Versions that are not listed in this article have not been evaluated for vulnerability to this security advisory. For information about the F5 security policy regarding evaluating older and unsupported versions of F5 products, refer to K4602: Overview of the F5...

K52559937: Overview of NGINX vulnerabilities (May 2021)

Security Advisory Description On May 25, 2021, NGINX announced the following security issues. This document is intended to serve as an overview of these vulnerabilities to help determine the impact to your NGINX systems. The details of each issue can be found in the associated Security Advisory...

CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

DEBIAN-CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

UBUNTU-CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

Code injection

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

CVE-2023-26249

Knot Resolver is affected by a DoS vulnerability (CVE-2023-26249) in versions prior to 5.6.0. The issue arises from insufficient input validation in the DNS translator, allowing a single client query to trigger many TCP reconnections (up to about a hundred attempts) when upstream servers close wi...

CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...

CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response...