Linux Kernel - Denial of Service, Information Leaks, and Privilege Escalation
Summary
DSA-2926-1: linux - security update. Affects linux versions < 3.2.57-3+deb7u1. Fixed in 3.2.57-3+deb7u1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system. It provides essential functionality for the system, including process management, memory management, device drivers, and more. The kernel is responsible for managing the communication between hardware and software components of the system. This vulnerability affects the Linux kernel in the Debian 7 (wheezy) distribution.
Vulnerability Detail
Multiple vulnerabilities have been discovered in the Linux kernel that could lead to denial of service, information leaks, or privilege escalation. These vulnerabilities include:
- CVE-2014-0196: A race condition in the pty layer that could result in denial of service or privilege escalation.
- CVE-2014-1737 and CVE-2014-1738: Missing input sanitizing in the FDRAWCMD ioctl and an information leak that could lead to privilege escalation.
- CVE-2014-2851: Incorrect reference counting in the ping_init_sock() function that allows denial of service or privilege escalation.
- CVE-2014-3122: Incorrect locking of memory that can result in local denial of service.
How To Fix
Minimum fixed version
3.2.57-3+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no specific workarounds mentioned for these vulnerabilities.
Conclusion
Upgrading the Linux kernel packages to the recommended version will address these vulnerabilities and help ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
These vulnerabilities could potentially allow an attacker to cause a denial of service, leak sensitive information, or escalate privileges on a system running the affected Linux kernel.
These vulnerabilities specifically affect the Linux kernel in the Debian 7 (wheezy) distribution. Other distributions or versions may have different vulnerabilities or may not be affected at all.
Yes, a patch is available for these vulnerabilities. It is recommended to upgrade the Linux kernel packages to version 3.2.57-3+deb7u1 or later.
These vulnerabilities primarily affect the local system. However, depending on the specific circumstances and system configuration, remote exploitation may be possible in some cases.
More information about these vulnerabilities can be found in the Debian Security Advisory DSA-2926-1.
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