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FreeBSD Security Advisory - FreeBSD-SA-16:21.43bsd
Posted Jun 1, 2016
Authored by CTurt | Site security.freebsd.org

FreeBSD Security Advisory - The implementation of historic stat(2) system call does not clear the output struct before copying it out to userland. An unprivileged user can read a portion of uninitialised kernel stack data, which may contain sensitive information, such as the stack guard, portions of the file cache or terminal buffers, which an attacker might leverage to obtain elevated privileges.

tags | advisory, kernel
systems | freebsd
SHA-256 | 5aea37987852d0521df4d2905049a1846239ec7524662651c8d72205994223c8

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