AZL-35329 CVE-2023-50868 affecting package unbound for versions less than 1.19.1-1

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...

AZL-34441 CVE-2023-50868 affecting package unbound for versions less than 1.19.1-1

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...

Code injection

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-2023-50868

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...

Slackware Linux 15.0 / current dnsmasq Multiple Vulnerabilities (SSA:2024-044-02)

The version of dnsmasq installed on the remote host is prior to 2.90. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2024-044-02 advisory. - MITRE: CVE-2023-50387 DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers...

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-2023-50868

CVE-2023-50868 is a DNSSEC-related denial of service issue (NSEC3 Closest Encloser proof) that can cause CPU exhaustion. The connected documents confirm impact on DNS implementations such as Unbound and BIND/BIND9 and describe the root cause as processors performing thousands of hash iterations f...

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-2023-50868

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...

powerdns-recursor -- Multiple Vulnerabilities

[email protected] reports: 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"...

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...

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...

ISC BIND Multiple DoS Vulnerabilities (CVE-2023-50387, CVE-2023-50868, KeyTrap) - Linux

ISC BIND 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 = "cpe:/a:isc:bind"; i...

ISC BIND Multiple DoS Vulnerabilities (CVE-2023-50387, CVE-2023-50868, KeyTrap) - Windows

ISC BIND 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 = "cpe:/a:isc:bind"; i...

Debian dsa-5621 : bind9 - security update

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5621 advisory. - The DNS message parsing code in named includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic,...

Debian dsa-5620 : libunbound-dev - security update

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5620 advisory. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5620...

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-2023-50868

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...

ISC BIND 9.0.0 < 9.16.48 / 9.9.3-S1 < 9.16.48-S1 / 9.18.0 < 9.18.24 / 9.18.11-S1 < 9.18.24-S1 / 9.19.0 < 9.19.21 Vulnerability (cve-2023-50868)

The version of ISC BIND installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the cve-2023-50868 advisory. - The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attacker...

Ubuntu 22.04 LTS / 23.10 : Bind vulnerabilities (USN-6633-1)

The remote Ubuntu 22.04 LTS / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6633-1 advisory. Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote...