{"id":"DEBIAN-CVE-2015-1821","details":"Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.","modified":"2026-09-09T06:47:20.683949925Z","published":"2015-04-16T14:59:01.663Z","upstream":["CVE-2015-1821"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2015-1821"}],"affected":[{"package":{"name":"chrony","ecosystem":"Debian:12","purl":"pkg:deb/debian/chrony?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-1821.json"}},{"package":{"name":"chrony","ecosystem":"Debian:13","purl":"pkg:deb/debian/chrony?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-1821.json"}},{"package":{"name":"chrony","ecosystem":"Debian:14","purl":"pkg:deb/debian/chrony?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-1821.json"}}],"schema_version":"1.9.0"}