SGI Security Advisory 20040601-01-P - Adam Gowdiak from the Poznan Supercomputing and Networking Center has reported that under certain conditions non privileged users can use the syssgi system call SGI_IOPROBE to read and write kernel memory which can be used to obtain root user privileges. Patches have been released for this and other issues. At this time, IRIX versions 6.5.20 to 6.5.24 are considered susceptible.
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