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...

CentOS 8 : unbound (CESA-2024:0965)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2024:0965 advisory. - 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...

SUSE-SU-2024:0590-1 Security update for bind

This update for bind fixes the following issues: Update to release 9.16.48: Feature Changes: The IP addresses for B.ROOT-SERVERS.NET have been updated to 170.247.170.2 and 2801:1b8:10::b. Security Fixes: Validating DNS messages containing a lot of DNSSEC signatures could cause excessive CPU load,...

USN-6642-1 bind9 vulnerabilities

Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. CVE-2023-4408 Elias Heftrig, Haya Schulmann,...

Fedora 39 : dnsmasq (2024-e24211eff0)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-e24211eff0 advisory. https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html Tenable has extracted the preceding description block directly from the...

[SECURITY] [DSA 5626-1] pdns-recursor security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5626-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff February 18, 2024 https://www.debian.org/security/faq -...

Updated dnsmasq packages fix security vulnerabilities

This updated dnsmasq package fixes security issues: Certain DNSSEC aspects of the DNS protocol allow a remote attacker to trigger a denial of service via extreme consumption of resource caused by DNSSEC query or response: - KeyTrap - Extreme CPU consumption in DNSSEC validator. CVE-2023-50387 -...

MGASA-2024-0041 Updated dnsmasq packages fix security vulnerabilities

This updated dnsmasq package fixes security issues: Certain DNSSEC aspects of the DNS protocol allow a remote attacker to trigger a denial of service via extreme consumption of resource caused by DNSSEC query or response: - KeyTrap - Extreme CPU consumption in DNSSEC validator. CVE-2023-50387 -...

[SECURITY] Fedora 39 Update: unbound-1.19.1-2.fc39

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

Debian dsa-5626 : pdns-recursor - security update

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5626 advisory. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5626-1...

Fedora: Security Advisory (FEDORA-2024-2e26eccfcb)

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 : unbound (2024-2e26eccfcb)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-2e26eccfcb advisory. - https://nlnetlabs.nl/projects/unbound/security-advisories/ - Secure again control channel. Tenable has extracted the preceding description block...

FreeBSD : powerdns-recursor -- Multiple Vulnerabilities (e15ba624-cca8-11ee-84ca-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the e15ba624-cca8-11ee-84ca-b42e991fc52e advisory. - Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs...

MGASA-2024-0038 Updated bind packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Parsing large DNS messages may cause excessive CPU load. CVE-2023-4408 Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is enabled. CVE-2023-5517 Enabling both DNS64 and serve-stale may cause an assertion...

Updated bind packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Parsing large DNS messages may cause excessive CPU load. CVE-2023-4408 Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is enabled. CVE-2023-5517 Enabling both DNS64 and serve-stale may cause an assertion...

Denial Of Service

dnsmasq is vulnerable to Denial Of Service. The attacker can exploit this vulnerability by sending crafted DNSSEC responses to the target system, causing it to consume excessive CPU resources...

FreeBSD : DNSSEC validators -- denial-of-service/CPU exhaustion from KeyTrap and NSEC3 vulnerabilities (21a854cc-cac1-11ee-b7a7-353f1e043d9a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 21a854cc-cac1-11ee-b7a7-353f1e043d9a advisory. - Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attacke...

Dnsmasq < 2.90 Multiple Vulnerabilities (KeyTrap)

Dnsmasq is prone to multiple vulenrabilities. 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 CPE = "cpe:/a:thekelleys:dnsmasq"; ifdescription...

PowerDNS Recursor Multiple DoS Vulnerabilities (2024-01, KeyTrap)

PowerDNS Recursor is prone to multiple denial of service DoS vulnerabilities. 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 CPE =...

CVE-2023-50387

Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled. Mitigation Mitigation for this issue is...