Improper Access Restriction in /proc/#####/io Files in Linux Kernel

CVE-2011-2495 · LOW Severity

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

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.

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