Red Hat: CVE-2026-19630: bind: BIND: Denial of Service via unbounded processing of crafted DNS messages

In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND. A DNS message with a maliciously large number of such structures will cause BIND to consume disproportionate amounts of CPU time and memory during...

Red Hat: CVE-2026-19630: bind: BIND: Denial of Service via unbounded processing of crafted DNS messages

In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND. A DNS message with a maliciously large number of such structures will cause BIND to consume disproportionate amounts of CPU time and memory during...

Astra Linux - vulnerability in qtbase-opensource-src

An issue was found in Qt 5.x prior to 5.15.14, 6.x prior to 6.2.9, and 6.3.x through 6.5.x prior to 6.5.1. QDnsLookup suffers from a buffer over-read caused by a specially crafted reply from a DNS server...

RockyLinux 9 : ruby:3.3 (RLSA-2026:72485)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:72485 advisory. resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses CVE-2026-80212 Tenable has extracted the preceding description...

EulerOS Virtualization 2.12.0 : mtr (EulerOS-SA-2026-3653)

According to the versions of the mtr package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : mtr is vulnerable to Out-of-bounds read vulnerability in ipinfolookup function. An attacker who can influence the TXT response used for...

CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

A flaw was found in the resolv gem. An attacker controlling DNS responses e.g., a spoofed response or a malicious upstream DNS server can exploit this by sending crafted DNS responses containing many distinct unknown DNS resource record pairs or SvcParamKeys. This leads to uncontrolled memory...

FreeBSD : DNSDist, PowerDNS, PowerDNS Recursor -- vulnerability (7e45952f-9268-11f1-ab2f-3c7c3fba4204)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 7e45952f-9268-11f1-ab2f-3c7c3fba4204 advisory. CVE-2026-52682: A crafted DNS packet can cause increased memory and CPU consumption. Tenable has...

EulerOS 2.0 SP11 : dnsmasq (EulerOS-SA-2026-3064)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client...

Debian dsa-6420 : pdns-backend-bind - security update

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6420 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6420-1 [email protected] https://www.debian.org/security/...

OESA-2026-3158 mtr security update

It is a network diagnostic tool,it has the "ping" and "traceroute" features. It prints information about the route and packets that sent from the host to the specified destination system.This tool can also print the response times and percentage for all network hops between the systems. Security...

unbound: Unbound: Denial of Service via crafted DNS responses with expired records

A flaw in Unbound allows a remote attacker controlling a delegated domain to trigger a NULL pointer dereference and crash the daemon. Exploitation occurs when serve-expired: yes and specific response-ip or RPZ rules are configured, resulting in a denial of service...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

RHEL 10 : glibc (RHSA-2026:42694)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:42694 advisory. The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name...

aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset

A flaw was found in aardvark-dns where a specially crafted TCP DNS query followed by a connection reset can trigger an infinite error loop, leading to 100% CPU usage and a denial of service. As aardvark-dns is only accessible via internal Podman networks, this issue can be exploited by a local...

DNSdist -- vulnerabilities

The DNSdist team reports: CVE-2026-40011: Prometheus denial of service via crafted DNS queries CVE-2026-42004: EDNS options smuggling CVE-2026-42005: Insufficient input validation of internal web server CVE-2026-40208: Denial of service via DoH3 queries CVE-2026-40209: Denial of service via IXFR...

RLSA-2026:24339 Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...

bind: BIND: Denial of Service via specially crafted DNS messages

A flaw was found in the bind component, specifically within the named daemon. This vulnerability allows a remote attacker to send specially crafted Domain Name System DNS messages. These messages, which use unusual classes or meta-classes, can trigger assertion failures in the named daemon when...

AlmaLinux 10 : bind (ALSA-2026:24338)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:24338 advisory. bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation CVE-2026-3039 bind: BIND: Denial of Service via specially crafted DNS messages...

Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...