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).
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Information
Published : 2018-07-26 12:29
Updated : 2020-10-15 06:28
NVD link : CVE-2017-18344
Mitre link : CVE-2017-18344
JSON object : View
CWE
CWE-125
Out-of-bounds Read
Products Affected
redhat
- enterprise_linux_desktop
- enterprise_linux_server_aus
- enterprise_linux_workstation
- enterprise_linux_server_tus
- mrg_realtime
- enterprise_linux_server_eus
- enterprise_linux_server
canonical
- ubuntu_linux
linux
- linux_kernel