FreeBSD : dbus -- multiple vulnerabilities (e6a7636a-02d0-11e4-88b6-080027671656)

This script is Copyright (C) 2014-2016 Tenable Network Security, Inc.

Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

Simon McVittie reports :

Alban Crequy at Collabora Ltd. discovered a bug in dbus-daemon's
support for file descriptor passing. A malicious process could force
system services or user applications to be disconnected from the D-Bus
system bus by sending them a message containing a file descriptor,
then causing that file descriptor to exceed the kernel's maximum
recursion depth (itself introduced to fix a DoS) before dbus-daemon
forwards the message to the victim process. Most services and
applications exit when disconnected from the system bus, leading to a
denial of service.

Additionally, Alban discovered that bug fd.o#79694, a bug previously
reported by Alejandro Martinez Suarez which was n believed to be
security flaw, could be used for a similar denial of service, by
causing dbus-daemon to attempt to forward invalid file descriptors to
a victim process when file descriptors become associated with the
wrong message.

See also :

Solution :

Update the affected package.

Risk factor :

Low / CVSS Base Score : 2.1

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 76364 ()

Bugtraq ID:

CVE ID: CVE-2014-3532

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