Oracle Linux: (CVE-2017-18344) (Multiple Advisories): kernel security, bug fix, and enhancement update
Description
The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).
Solution(s)
- oracle-linux-upgrade-dtrace-modules
- oracle-linux-upgrade-kernel
- oracle-linux-upgrade-kernel-uek
- oracle-linux-upgrade-kernel-uek-debug
- oracle-linux-upgrade-kernel-uek-debug-devel
- oracle-linux-upgrade-kernel-uek-devel
- oracle-linux-upgrade-kernel-uek-doc
- oracle-linux-upgrade-kernel-uek-firmware
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