D-Bus Vulnerability (CVE-2022-42011) in dbus package
Summary
CVE-2022-42011: An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. Affects dbus across 2 version ranges.
< 1.12.24-r0
< 5ff925648e88ba29cef7d708bc2bbc5d6de5fc48
Fixed in 1.12.24-r0. How to fix ↓
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Background
D-Bus is a message bus system that allows communication between applications on Linux systems. It provides a simple and efficient way for processes to exchange messages. The dbus package is an implementation of the D-Bus protocol and is used by various programs and libraries to enable inter-process communication. However, a vulnerability (CVE-2022-42011) has been discovered in D-Bus versions before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. This vulnerability allows an authenticated attacker to crash dbus-daemon and other programs using libdbus by sending a message with an inconsistent array length compared to the size of the element type.
Vulnerability Detail
The vulnerability (CVE-2022-42011) in the dbus package allows an authenticated attacker to crash dbus-daemon and other programs using libdbus. By sending a specially crafted message with an array length inconsistent with the size of the element type, the attacker can trigger a crash. This can lead to denial of service (DoS) conditions and disrupt the normal operation of affected systems. The vulnerability requires authentication, so unauthenticated attackers cannot exploit it.
How To Fix
Minimum fixed version
1.12.24-r0
This is the first release that contains the fix.
sudo apk add --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 necessary to apply the official fix by updating the dbus package to a patched version.
Conclusion
The D-Bus vulnerability (CVE-2022-42011) in the dbus package can be mitigated by updating to the latest version of the package. It is important to keep systems and applications up to date to ensure the security and stability of the environment. For further assistance and support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for dbus →
FAQ
D-Bus is a message bus system that enables communication between applications on Linux systems. It provides a simple and efficient way for processes to exchange messages.
The vulnerability allows an authenticated attacker to crash dbus-daemon and other programs using libdbus. This can lead to denial of service (DoS) conditions and disrupt the normal operation of affected systems.
No, the vulnerability requires authentication. Unauthenticated attackers cannot exploit it.
To fix the vulnerability, update the dbus package to version 1.12.24 or later. It is also recommended to update any applications that rely on dbus to the latest version available.
No, there is no known workaround. It is necessary to apply the official fix by updating the dbus package.
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