CVE-2014-3477 Denial of service in n/a
Local users can cause denial of service or conduct side-channel attacks by sending D-Bus messages to inactive services due to incorrect error routing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-3477?
CVE-2014-3477 is a medium-severity denial of service vulnerability in n/a, published on 1 Jul 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2014-3477?
It affects 2 products.
Products include D-Bus Project D-Bus, Freedesktop Dbus.
How do I fix CVE-2014-3477?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2014-3477 being exploited?
There is no known exploitation of CVE-2014-3477 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2014-3477, GHSA-qj2p-fqqf-6x63, MGASA-2014-0266, UBUNTU-CVE-2014-3477.