SB2014070101 - Input validation error in Freedesktop D-Bus



SB2014070101 - Input validation error in Freedesktop D-Bus

Published: July 1, 2014 Updated: August 10, 2020

Security Bulletin ID SB2014070101
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Input validation error (CVE-ID: CVE-2014-3477)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The dbus-daemon in D-Bus 1.2.x through 1.4.x, 1.6.x before 1.6.20, and 1.8.x before 1.8.4, sends an AccessDenied error to the service instead of a client when the client is prohibited from accessing the service, which allows local users to cause a denial of service (initialization failure and exit) or possibly conduct a side-channel attack via a D-Bus message to an inactive service.


Remediation

Install update from vendor's website.