{"id":"CVE-2020-12049","details":"An issue was discovered in dbus \u003e= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.","modified":"2026-07-08T05:55:40.747154500Z","published":"2020-06-08T17:15:09.910Z","related":["SUSE-SU-2021:2424-1","SUSE-SU-2021:2470-1","SUSE-SU-2021:2590-1","SUSE-SU-2021:2810-1","openSUSE-SU-2021:1204-1","openSUSE-SU-2021:2810-1","openSUSE-SU-2024:10711-1"],"database_specific":{"unresolved_ranges":[{"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux","cpes":["cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"],"extracted_events":[{"introduced":"12.04"},{"last_affected":"12.04"},{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"},{"introduced":"19.10"},{"last_affected":"19.10"},{"introduced":"20.04"},{"last_affected":"20.04"}]}]},"references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html"},{"type":"ADVISORY","url":"https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30"},{"type":"ADVISORY","url":"https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18"},{"type":"ADVISORY","url":"https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-46"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4398-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4398-2/"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2020/06/04/3"},{"type":"EVIDENCE","url":"https://gitlab.freedesktop.org/dbus/dbus/-/issues/294"},{"type":"EVIDENCE","url":"https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.freedesktop.org/dbus/dbus","events":[{"introduced":"acf0eb52ad7ca4d1af9a54c67973f142e96d2764"},{"fixed":"a0926ef86f413f18202ffa19cb1433b6ba00ac36"}],"database_specific":{"cpe":"cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.3.0"},{"fixed":"1.12.18"}],"source":"CPE_RANGE"}}],"versions":["dbus-1.12.16","dbus-1.12.14","dbus-1.12.12","dbus-1.12.10","dbus-1.12.8","dbus-1.12.6","dbus-1.12.4","dbus-1.12.2","dbus-1.12.0","dbus-1.11.22","dbus-1.11.20","dbus-1.11.18","dbus-1.11.16","dbus-1.11.14","dbus-1.11.12","dbus-1.11.10","dbus-1.11.8","dbus-1.11.6","dbus-1.11.4","dbus-1.11.2","dbus-1.11.0","dbus-1.10.0","dbus-1.9.20","dbus-1.9.18","dbus-1.9.16","dbus-1.9.14","dbus-1.9.12","dbus-1.9.10","dbus-1.9.8","dbus-1.9.4","dbus-1.9.2","dbus-1.9.0","dbus-1.8.0","dbus-1.7.10","dbus-1.7.8","dbus-1.7.6","dbus-1.7.4","dbus-1.7.2","dbus-1.7.0","dbus-1.6.0","dbus-1.5.12","dbus-1.5.10","dbus-1.5.8","dbus-1.5.6","dbus-1.5.4","dbus-1.5.2","dbus-1.5.0","dbus-1.4.6","dbus-1.4.4","dbus-1.4.1","dbus-1.4.0","dbus-1.3.1","dbus-1.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12049.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}