Incorrect Data Types in Stack Randomization Vulnerability

CVE-2015-1593 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c.

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