{"id":"USN-8308-1","summary":"dnsmasq vulnerability","details":"It was discovered that Dnsmasq incorrectly handled BOOTREPLY packets when\nconfigured with the --dhcp-split-relay option. A remote attacker could\nuse this issue to cause Dnsmasq to crash, resulting in a denial of\nservice, or possibly execute arbitrary code.","modified":"2026-05-26T20:14:14.071171196Z","published":"2026-05-26T18:19:29Z","related":["UBUNTU-CVE-2026-6507"],"upstream":["CVE-2026-6507","UBUNTU-CVE-2026-6507"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8308-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6507"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92-1ubuntu0.3"}]}],"versions":["2.91-1build1","2.92~rc3-1","2.92-1","2.92-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"dnsmasq","binary_version":"2.92-1ubuntu0.3"},{"binary_name":"dnsmasq-base","binary_version":"2.92-1ubuntu0.3"},{"binary_name":"dnsmasq-base-lua","binary_version":"2.92-1ubuntu0.3"},{"binary_name":"dnsmasq-utils","binary_version":"2.92-1ubuntu0.3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-6507","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:26.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8308-1.json"}}],"schema_version":"1.7.5"}