Fedora 38 : bind9-next (2024-c36c448396)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-c36c448396 advisory. Security Fixes - Validating DNS messages containing a lot of DNSSEC signatures could cause excessive CPU load, leading to a denial-of-service...

Fedora: Security Advisory for bind9-next (FEDORA-2024-c36c448396)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

Fedora 39 : bind9-next (2024-499b9be35f)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-499b9be35f advisory. Security Fixes - Validating DNS messages containing a lot of DNSSEC signatures could cause excessive CPU load, leading to a denial-of-service...

Fedora: Security Advisory (FEDORA-2024-499b9be35f)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

ALSA-2024:0977 Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator CVE-2023-50387 bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources CVE-2023-50868 For more details about th...

Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator CVE-2023-50387 bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources CVE-2023-50868 For more details about th...

Ubuntu: Security Advisory (USN-6642-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

Resource Exhaustion

bind9 is vulnerable to Resource Exhaustion. The vulnerability due to excessive CPU load on DNS message parsing code in named includes a section whose computational complexity is overly high. It leads to degraded performance, unresponsiveness, or denial of service, affecting the availability and...

Assertion Failure

bind9 is vulnerable to Assertion Failure. The vulnerability is due to assertion failure when the resolver receives a PTR Pointer Record query for an RFC 1918 address a private IP address as defined by the Internet Assigned Numbers Authority in nxdomain-redirect ; configuration. which leads to a...

Denial Of Service

Bind9 is vulnerable to denial of service. The vulnerability is due to asynchronous processes of named running as a recursive resolver component of BIND, when attempting to clean up its cache database which enables the list of queued cleanup events to grow infinitely large over time, allowing the...

CVE-2023-5680

A flaw was found in the bind9 package. This issue may allow an attacker to substantially decrease named performance by sending a specific set of queries, forcing the same name to have a large number of ECS records stored. In the worst case scenario, named can become unresponsive, leading to a...

Debian: Security Advisory (DSA-5621-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2024 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-2023-6516

A flaw was found in the named application, part of the bind9 package, which uses a cache database to speeds up DNS queries. To maintain its efficiency when running as a recursive name resolver, named performs a cache database clean up under certain conditions. This issue may allow an attacker to...

[SECURITY] [DSA 5621-1] bind9 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5621-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff February 14, 2024 https://www.debian.org/security/faq -...

Ubuntu: Security Advisory (USN-6633-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

DSA-5621-1 bind9 - security update

Bulletin has no description...

CVE-2023-50868

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

CVE-2023-5517

A flaw in query-handling code can cause named to exit prematurely with an assertion failure when: - nxdomain-redirect ; is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versio...

CVE-2023-50868

The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of service CPU consumption for SHA-1 computations via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification...

CVE-2023-50387

Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG...