An issue was discovered in dbus >= 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.
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2020-12049",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-12049",
"published": "2020-06-08T17:15:09.910Z",
"imported": "2025-10-10T13:32:21.997Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12049",
"modified": "2024-11-21T04:59:10.813Z"
}
]
}