SUSE SLED15 / SLES15 Security Update : dnsmasq (SUSE-SU-2026:1934-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1934-1 advisory. This update for dnsmasq fixes the following issues Security issues: - CVE-2026-4890: DoS vulnerability in the...

Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. CVE-2026-4891: heap-based out-of-bounds read vulnerability in the DNSSEC validation bsc1265002. CVE-2026-4892: heap-based out-of-bounds write vulnerability in...

SUSE-SU-2026:1934-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. - CVE-2026-4891: heap-based out-of-bounds read vulnerability in the DNSSEC validation bsc1265002. - CVE-2026-4892: heap-based out-of-bounds write vulnerabili...

SUSE-SU-2026:21677-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-2291: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect bsc1258251. - CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. - CVE-2026-4891: heap-based out-of-bounds re...

Updated dnsmasq packages fix security vulnerabilities

CVE-2026-2291: dnsmasqs extractname function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS. CVE-2026-4890: A Denial of Service DoS...

SUSE-SU-2026:21640-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-2291: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect bsc1258251. - CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. - CVE-2026-4891: heap-based out-of-bounds re...

SUSE-SU-2026:21788-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-2291: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect bsc1258251. - CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. - CVE-2026-4891: heap-based out-of-bounds re...

OPENSUSE-SU-2026:20748-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Security issues: - CVE-2026-2291: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect bsc1258251. - CVE-2026-4890: DoS vulnerability in the DNSSEC validation bsc1265001. - CVE-2026-4891: heap-based out-of-bounds re...

CVE-2026-4891

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

CVE-2026-4890

A Denial of Service DoS vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

CVE-2026-4890

Dnsmasq is affected by CVE-2026-4890, a DoS vulnerability in DNSSEC validation. The issue is described as an infinite-loop flaw in DNSSEC validation, which can cause the dnsmasq service to crash or become unresponsive when processing a crafted DNS response. Affected component: dnsmasq’s DNSSEC va...

CVE-2026-4891

A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System...

dnsmasq contains several vulnerabilities, including attacker DNS redirect, privilege escalation, and heap manipulation

Overview dnsmasq is affected by multiple memory safety and input validation vulnerabilities, including heap buffer overflows, heap corruption, and code execution flaws. Collectively, these vulnerabilities enable attackers to poison cached DNS records, bypass security controls, crash the dnsmasq...

RHEL 8 : bind (RHSA-2026:16064)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:16064 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

Linux Distros Unpatched Vulnerability : CVE-2026-4890

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A Denial of Service DoS vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

Linux Distros Unpatched Vulnerability : CVE-2026-4891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

DNSmasq 安全漏洞

DNSmasq is a DNS configuration tool developed by Simon Kelley. DNSmasq has a security vulnerability, which stems from heap-based out-of-bound reads during DNSSEC verification. This vulnerability allows remote attackers to cause denial-of-service attacks through specially crafted DNS packets...

PT-2026-39699

Name of the Vulnerable Software and Affected Versions dnsmasq affected versions not specified Description A heap-based out-of-bounds read in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service by sending a crafted DNS packet. A heap-based out-of-bounds read occur...

hickory-proto: NSEC3 closest-encloser proof validation enters unbounded loop on cross-zone responses

The NSEC3 closest-encloser proof validation in hickory-proto's 0.25.0-alpha.3 ... 0.25.2 and hickory-net's 0.26.0-alpha.1 .. 0.26.0 DnssecDnsHandle walks from the QNAME up to the SOA owner name, building a list of candidate encloser names. The iterator used assumes the QNAME is a descendant of th...