Denial of Service Vulnerability in dbus
Summary
DSA-2707-1: dbus - denial of service. Affects dbus versions < 1.6.8-1+deb7u1. Fixed in 1.6.8-1+deb7u1. How to fix ↓
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Background
dbus is a message bus system that allows communication between different software applications. It is commonly used in Linux-based operating systems to facilitate inter-process communication. The vulnerability in dbus is caused by an implementation bug in the _dbus_printf_string_upper_bound() function. This bug can be exploited by a local user to crash system services that use libdbus, resulting in a denial of service. Depending on the dbus services running, it could potentially lead to a complete system crash.
Vulnerability Detail
The vulnerability in dbus is due to an implementation bug in the _dbus_printf_string_upper_bound() function. This bug can be exploited by a local user to crash system services that use libdbus, causing a denial of service. By sending specially crafted messages or requests to the affected services, an attacker can trigger this vulnerability and disrupt the normal operation of the system. The impact of this vulnerability can vary depending on the dbus services running, but in some cases, it could result in a complete system crash.
How To Fix
Minimum fixed version
1.6.8-1+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade dbusTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix mentioned above by upgrading the dbus package to the latest version.
Conclusion
The vulnerability in dbus can be exploited by a local user to crash system services that use libdbus, resulting in a denial of service. It is recommended to upgrade the dbus package to the latest version to fix this vulnerability. For more information and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for dbus →
FAQ
dbus is a message bus system that allows communication between different software applications. It is commonly used in Linux-based operating systems.
This vulnerability can be exploited by a local user to crash system services that use libdbus, causing a denial of service. Depending on the dbus services running, it could potentially lead to a complete system crash.
To fix this vulnerability, it is recommended to upgrade the dbus package to version 1.6.8-1+deb7u1 or later. This can be done by updating the package using the package manager of the operating system.
There is no known workaround for this vulnerability. It is recommended to apply the fix mentioned above by upgrading the dbus package to the latest version.
For more information about this vulnerability, you can refer to the DSA-2707-1 advisory on the Debian Security Tracker website.
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