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Fedora 44 dnsmasq 2.92rel2 Important DoS Fixes FEDORA-2026-ac5cceec13

fedora
Calendar Grey May 15, 2026
Dist Fedora Esm H88
Fedora 44 dnsmasq Update with Important Fixes for Denial of Service Risks and More.
Update to 2.92rel2 2.92 point release incorporating fixes for: CVE-2026-2291 CVE-2026-4890 CVE-2026-4891

Summary

Dnsmasq is lightweight, easy to configure DNS forwarder and DHCP server.

It is designed to provide DNS and, optionally, DHCP, to a small network.

It can serve the names of local machines which are not in the global

DNS. The DHCP server integrates with the DNS server and allows machines

with DHCP-allocated addresses to appear in the DNS with names configured

either in each host or in a central configuration file. Dnsmasq supports

static and dynamic DHCP leases and BOOTP for network booting of disk-less

machines.

Update Information:

Update to 2.92rel2 2.92 point release incorporating fixes for: CVE-2026-2291 CVE-2026-4890 CVE-2026-4891 CVE-2026-4892 CVE-2026-4893 CVE-2026-5172 https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html

Topics%20covered

Topics Covered

security advisory denial of service fedora important dnsmasq 2.92rel2

Change Log

* Tue May 12 2026 Petr Men\u0161k - 2.92rel2-9 - Update to 2.92rel2 (rhbz#2469245) * Mon Apr 20 2026 Petr Men\u0161k - 2.92-8 - Fix 1 byte extra write byte in DHCP reply (rhbz#2459196) * Mon Feb 16 2026 Petr Men\u0161k - 2.92-7 - Add optional build support for libasan * Wed Feb 11 2026 Petr Men\u0161k <> - 2.92-6 - Do not fail hard on inotify socket or watch failure * Thu Jan 22 2026 Petr Men\u0161k <> - 2.92-5 - Do not fail validation if signature owner name does not match (rbhz#2421820)

References


[ 1 ] Bug #2459196 - CVE-2026-6507 dnsmasq: dnsmasq: Denial of Service due to out-of-bounds write in DHCP BOOTREPLY processing [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2459196 [ 2 ] Bug #2469245 - dnsmasq-2.92rel2 is available https://bugzilla.redhat.com/show_bug.cgi?id=2469245

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-ac5cceec13' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
Medium
High
Critical

Name: dnsmasq
Product: Fedora 44
Version: 2.92rel2
Release: 9.fc44
URL: http://www.thekelleys.org.uk/dnsmasq/
Summary: A lightweight DHCP/caching DNS server

Topics%20covered

Topics Covered

security advisory denial of service fedora important dnsmasq 2.92rel2

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