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Fixed

SCP6-1272 : Security Advisory - linux - CVE-2017-18344

Created: Jul 31, 2018    Updated: Aug 14, 2019
Resolved Date: Aug 14, 2019
Found In Version: 6.0.0.11
Fix Version: 6.0.0.38
Severity: Standard
Applicable for: Wind River Linux 6
Component/s: Kernel

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).

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18344

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