Security update for dnsmasq

Announcement ID: SUSE-SU-2026:21633-1
Release Date: 2026-05-12T09:35:20Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2026-2291 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-2291 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-2291 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Products:
  • SUSE Linux Micro 6.1

An update that solves one vulnerability and has two fixes can now be installed.

Description:

This update for dnsmasq fixes the following issues:

  • CVE-2026-2291: Fixed a bug that could have been abused to record false cached data enabling DoS or attacker redirect. (bsc#1258251)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Micro 6.1
    zypper in -t patch SUSE-SLE-Micro-6.1-523=1

Package List:

  • SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    • dnsmasq-debuginfo-2.90-slfo.1.1_2.1
    • dnsmasq-debugsource-2.90-slfo.1.1_2.1
    • dnsmasq-2.90-slfo.1.1_2.1

References: