Updated dnsmasq packages fix security vulnerabilities

The updated dnsmasq packages fix multiple security issues: A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause dnsmasq to write past the end of an...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.19.39 bug fix and security update

Red Hat OpenShift Container Platform release 4.19.39 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.19. Red Hat Product Security has rated this update as having a...

GHSA-28HJ-3GJ2-63M5 vulnerabilities

Vulnerabilities for packages: dnsmasq...

CVE-2026-6507 vulnerabilities

Vulnerabilities for packages: dnsmasq...

CVE-2026-6507 vulnerabilities

Vulnerabilities for packages: dnsmasq...

GHSA-28HJ-3GJ2-63M5 vulnerabilities

Vulnerabilities for packages: dnsmasq...

SUSE-SU-2026:2974-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues - CVE-2026-12725: heap buffer overflow in logquery when logging unsupported DS/DNSKEY replies bsc1268764. - CVE-2026-12969: out-of-bounds read in findsoa due to missing extrabytes validation bsc1268882. Changes for dnsmasq: - Update to 2.93: Fix ...

OESA-2026-2966 dnsmasq security update

Dnsmasq provides network infrastructure for small networks: DNS, DHCP, router advertisement and network boot. It is designed to be lightweight and have a small footprint, suitable for resource constrained routers and firewalls. It has also been widely used for tethering on smartphones and portabl...

OESA-2026-2965 dnsmasq security update

Dnsmasq provides network infrastructure for small networks: DNS, DHCP, router advertisement and network boot. It is designed to be lightweight and have a small footprint, suitable for resource constrained routers and firewalls. It has also been widely used for tethering on smartphones and portabl...

dnsmasq < 2.93 Heap-Based Buffer Overflow (CVE-2026-12725)

The version of dnsmasq installed on the remote host is prior to 2.93. It is, therefore, affected by a heap-based buffer overflow vulnerability. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause...

Important Photon OS Security Update - PHSA-2026-5.0-0914

Updates of 'dnsmasq' packages of Photon OS have been released...

RHSA-2026:34508 Red Hat Security Advisory: dnsmasq security update

Bulletin has no description...

OPENSUSE-SU-2026:11172-1 dnsmasq-2.93-2.1 on GA media

These are all security issues fixed in the dnsmasq-2.93-2.1 package on the GA media of openSUSE Tumbleweed...

dnsmasq: Broken ECS source validation bypass

A validation bypass was discovered in dnsmasq's RFC 7871 client subnet ECS handling. When verifying ECS source information in DNS responses, dnsmasq passes the OPT record length instead of the full packet length to the validation function.This causes all internal bounds checks to fail, completely...

dnsmasq: DHCPv6 CLID buffer overflow in helper process

A heap buffer overflow was discovered in dnsmasq's DHCP script helper process. When processing DHCPv6 client identifiers CLIDs, the helper hex-encodes the raw CLID bytes into a fixed-size buffer without length validation. Since DHCPv6 CLIDs can be up to 65,535 bytes, a crafted DHCPv6 packet can...

dnsmasq: RRSIG rdlen underflow leading to heap OOB read

A heap out-of-bounds read vulnerability was discovered in dnsmasq's DNSSEC validation. When processing RRSIG records, dnsmasq calculates the signature length by subtracting the fixed field size from the record's declared data length. A crafted RRSIG record with a data length smaller than the fixe...

dnsmasq: NSEC bitmap parsing infinite loop

A denial of service vulnerability was discovered in dnsmasq's DNSSEC validation. When parsing NSEC and NSEC3 bitmap records, the window iteration logic fails to account for the 2-byte window header when advancing through the bitmap data. A specially crafted DNS response with a zero-length bitmap...

dnsmasq: dnsmasq: heap buffer overflow in cache via NAME_ESCAPE expansion

A heap buffer overflow was discovered in dnsmasq's DNS cache. When processing DNS responses, dnsmasq expands certain characters into longer escape sequences, but the cache buffer is not sized to hold the expanded result. A specially crafted DNS response can overflow this buffer, potentially...

Important: Red Hat Security Advisory: dnsmasq security update

An update for dnsmasq is now available for Red Hat Enterprise Linux 9.6 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...

SUSE-SU-2026:22454-1 Security update for dnsmasq

This update for dnsmasq fixes the following issues Update to 2.93: - CVE-2026-12725: heap buffer overflow in logquery when logging unsupported DS/DNSKEY replies bsc1268764...