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Security hole found in Linux

Programmers disclosed a security hole this week in a part of the heart of the Linux operating system that could let users of a machine take it over even if they don't have privileges to do so. The vulnerability affects both the 2.2 and 2.4 series of Linux kernels, the core of the operating system, said Alan Cox, one of the key deputies of Linux founder Linus Torvalds in the programming community that collectively produces Linux. Those kernels are at the center of several Linux products released recently from companies such as Red Hat and SuSE.

The problem could let "local" computer users--those with permission to log on to a machine--to gain "root" access and take complete control of the machine, Cox said. Such local vulnerabilities are considered less severe than remote ones that let attackers over a network take over a machine even if they don't have a basic user account on it.

The problem affected the "ptrace" component of Linux, which is used to help find bugs in software.

Download: Updated 2.4 kernel fixes vulnerability

View: Security Advisory

News source: c|net

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