The Unix game "rogue" contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue occurs when "rogue" is setuid root, allowing a user to save their game to an arbitrary location. This flaw may lead to a loss of integrity.
BSD contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when a malicious user creates a trival program to open a file more than 20 times, with forking and repeating. When this program creates more than 20 processes, with each process maxing out at 20 file descriptors, the f_count variable, which is a char data type, will wrap back to 0 and start to increase again. If a malicious user can set f_count to exactly 0 and then open a read only file, he or she can enable write access on other descriptors. This flaw can also be timed with the execution of a setuid binary, to steal its file descriptors. This will permit write access to both files and directories. This flaw may lead to a loss of integrity.
Atomic Energy of Canada Limited (AECL) Therac-25 Beam Spreader Plate Race Condition Radiation Overdose Weakness
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