Integer Overflow in libnl3 - Security Update
Summary
DLA-892-1: libnl3 - security update. Affects libnl3 versions < 3.2.7-4+deb7u1. Fixed in 3.2.7-4+deb7u1. How to fix ↓
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Background
libnl3 is a library for dealing with netlink sockets. It provides a programming interface for communication between kernel and user space processes. The library is commonly used in networking applications to manage network interfaces, routing tables, and other network-related tasks. However, a vulnerability has been discovered in libnl3 that could allow a malicious application to execute arbitrary code within the context of the WiFi service.
Vulnerability Detail
The vulnerability in libnl3 is an integer overflow issue. Specifically, a missing check in the nlmsg_reserve() function could be exploited by an attacker to trigger the overflow. This could lead to the execution of arbitrary code within the WiFi service, potentially allowing the attacker to gain unauthorized access or perform other malicious actions. The vulnerability affects the Debian 7 Wheezy ecosystem and has been assigned the identifier CVE-2017-0553.
How To Fix
Minimum fixed version
3.2.7-4+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libnl3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
In conclusion, the libnl3 library is vulnerable to an integer overflow issue that could allow arbitrary code execution within the WiFi service. To mitigate this vulnerability, it is crucial to upgrade the libnl3 package to the fixed version. For further assistance and support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libnl3 →
FAQ
libnl3 is a library for dealing with netlink sockets, providing a programming interface for communication between kernel and user space processes.
The vulnerability could allow a malicious application to execute arbitrary code within the context of the WiFi service, potentially leading to unauthorized access or other malicious actions.
The vulnerability affects the Debian 7 Wheezy ecosystem.
The vulnerability has been assigned the identifier CVE-2017-0553.
To fix this vulnerability, it is recommended to upgrade the libnl3 package to version 3.2.7-4+deb7u1 or later.
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