{"id":"SUSE-SU-2026:2458-1","summary":"Security update for dnsmasq","details":"This update for dnsmasq fixes the following issues\n\n- CVE-2026-2291: VU#471747: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect\n  (bsc#1258251).\n- CVE-2026-4890: DoS vulnerability in the DNSSEC validation (bsc#1265001).\n- CVE-2026-4891: heap-based out-of-bounds read vulnerability in the DNSSEC validation (bsc#1265002).\n- CVE-2026-4892: heap-based out-of-bounds write vulnerability in the DHCPv6 implementation (bsc#1265003).\n- CVE-2026-4893: information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks\n  (bsc#1265004).\n- CVE-2026-5172: buffer overflow in dnsmasq's extract_addresses() function (bsc#1265006).\n- CVE-2026-6507: out-of-bounds write in DHCP BOOTREPLY processing can lead to denial of service (bsc#1262487).\n  \nChanges for dnsmasq:\n\n- Update to security release 2.92rel2.\n- Fix setting of compile time options from the spec file.\n","modified":"2026-06-19T08:15:07.136080170Z","published":"2026-06-18T15:54:25Z","related":["CVE-2026-2291","CVE-2026-4890","CVE-2026-4891","CVE-2026-4892","CVE-2026-4893","CVE-2026-5172","CVE-2026-6507"],"upstream":["CVE-2026-2291","CVE-2026-4890","CVE-2026-4891","CVE-2026-4892","CVE-2026-4893","CVE-2026-5172","CVE-2026-6507"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20262458-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258251"},{"type":"REPORT","url":"https://bugzilla.suse.com/1262487"},{"type":"REPORT","url":"https://bugzilla.suse.com/1265001"},{"type":"REPORT","url":"https://bugzilla.suse.com/1265002"},{"type":"REPORT","url":"https://bugzilla.suse.com/1265003"},{"type":"REPORT","url":"https://bugzilla.suse.com/1265004"},{"type":"REPORT","url":"https://bugzilla.suse.com/1265006"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-2291"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4890"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4891"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4892"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4893"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-5172"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-6507"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","purl":"pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92rel2-18.27.1"}]}],"ecosystem_specific":{"binaries":[{"dnsmasq":"2.92rel2-18.27.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:2458-1.json"}},{"package":{"name":"dnsmasq","ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","purl":"pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92rel2-18.27.1"}]}],"ecosystem_specific":{"binaries":[{"dnsmasq":"2.92rel2-18.27.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:2458-1.json"}}],"schema_version":"1.7.5"}