CentOS 8 : dnsmasq (CESA-2024:1335)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2024:1335 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...

Amazon Linux 2023 : bind, bind-chroot, bind-devel (ALAS2023-2024-550)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-550 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, but crafted queries and responses may...

Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2024-553)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-553 advisory. Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone...

Amazon Linux 2023 : dnsmasq, dnsmasq-utils (ALAS2023-2024-552)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-552 advisory. Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone...

Important: bind

Issue Overview: 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, but crafted queries and responses may cause excessive CPU load on the affected named instance by exploiting this flaw. This...

Important: unbound

Issue Overview: Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification...

Amazon Linux 2 : unbound (ALAS-2024-2481)

The version of unbound installed on the remote host is prior to 1.7.3-15. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2481 advisory. Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of servi...

CLSA-2024-1709550262 bind: Fix of 2 CVEs

CVE-2023-50387: Resolved CPU exhaustion from specially crafted DNSSEC-signed zone responses - CVE-2023-50868: Resolved CPU exhaustion from DNSSEC-signed zones using NSEC3...

CLSA-2024-1709550046 bind: Fix of 2 CVEs

CVE-2023-50387: Resolved CPU exhaustion from specially crafted DNSSEC-signed zone responses - CVE-2023-50868: Resolved CPU exhaustion from DNSSEC-signed zones using NSEC3...

Important: unbound

Issue Overview: Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification...

OESA-2024-1210 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

USN-6665-1: Unbound vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Unbound incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Unbound to consume resources, leading to a denial of service. CVE-2023-50387 It was discovered that...

USN-6665-1 unbound vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Unbound incorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Unbound to consume resources, leading to a denial of service. CVE-2023-50387 It was discovered that...

Oracle Linux 9 : unbound (ELSA-2024-0977)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-0977 advisory. 1.16.2-3.1 - Fix DNSSEC validation vulnerabilities which can lead to DoS in trivially orchestrated attacks CVE-2023-50387 and CVE-2023-50868 Tenable ha...

AlmaLinux 9 : unbound (ALSA-2024:0977)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:0977 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...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

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...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 8 : unbound (RHSA-2024:0982)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0982 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: bind9: KeyTrap - Extreme CPU...

USN-6657-1: Dnsmasq vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Dnsmasq icorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Dnsmasq to consume resources, leading to a denial of service. CVE-2023-50387 It was discovered that...

USN-6657-1 dnsmasq vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Dnsmasq icorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Dnsmasq to consume resources, leading to a denial of service. CVE-2023-50387 It was discovered that...