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FreeBSD: VID-27616957-B084-11EA-937B-B42E99A1B9C3 (CVE-2020-12049): dbus file descriptor leak

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FreeBSD: VID-27616957-B084-11EA-937B-B42E99A1B9C3 (CVE-2020-12049): dbus file descriptor leak

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
04/09/2020
Created
07/07/2020
Added
07/04/2020
Modified
07/04/2020

Description

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.

Solution(s)

  • freebsd-upgrade-package-dbus

References

  • USN-4398-1
  • USN-4398-2
  • CVE-2020-12049

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