FreeBSD: 'kernel' Local DoS

posted onFebruary 7, 2002
by hitbsecnews

Source: News Forge

A race condition existed where a file could be removed between calling fstatfs() and the point where the file is accessed causing the file descriptor to become invalid. This may allow unprivileged local users to cause a kernel panic. Currently only the procfs filesystem is known to be vulnerable. On vulnerable FreeBSD systems where procfs is mounted, unprivileged local users may be able to cause a kernel panic.

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