Vulnerability could allow low-level users to gain control of systems

    Date05 Jan 2004
    3940
    Posted ByAnthony Pell
    Computer security researchers are again warning about a critical vulnerability in the Linux kernel that could be used by malicious hackers to take control of systems using the popular open source operating system. The vulnerability affects versions of the Linux kernel up to and including version 2.6 and would give low-level Linux users total control over a Linux system. Guardian Digital and Red Hat released updated kernel packages on Monday to fix the mremap security hole. ISEC encouraged Linux users to fix vulnerable systems as soon as software patches became available from their vendor. . . . Computer security researchers are again warning about a critical vulnerability in the Linux kernel that could be used by malicious hackers to take control of systems using the popular open source operating system.

    ISEC Security Research said Monday that it found a critical vulnerability in code that is used to manage virtual memory on Linux systems. The vulnerability affects versions of the Linux kernel up to and including version 2.6 and would give low-level Linux users total control over a Linux system.

    ISEC, a noncommercial security research group based in Poland, discovered the problem in kernel code for a component called "mremap," according to a message posted by Paul Starzetz, an ISEC member.

    Guardian Digital and Red Hat released updated kernel packages on Monday to fix the mremap security hole. ISEC encouraged Linux users to fix vulnerable systems as soon as software patches became available from their vendor.

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