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SYNTHESIS OF THE VULNERABILITY

A local attacker can send a malicious message to a dbus service,
in order to trigger a denial of service.

Impacted products: Unix (platform)

Severity: 1/4

Creation date: 11/06/2014

DESCRIPTION OF THE VULNERABILITY

The D-Bus system is used by local applications, in order to
exchange messages.

However, when the client sends a message to a stopped service,
with a security policy denying this message, the service sends an
AccessDenied error message to itself.

A local attacker can therefore send a malicious message to a dbus
service, in order to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/dbus-denial-of-service-via-AccessDenied-14878