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).
References
History
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MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2018-07-26T19:00:00
Updated: 2018-11-14T10:57:02
Reserved: 2018-07-26T00:00:00
Link: CVE-2017-18344
JSON object: View
NVD Information
Status : Analyzed
Published: 2018-07-26T19:29:00.427
Modified: 2020-10-15T13:28:10.487
Link: CVE-2017-18344
JSON object: View
Redhat Information
No data.
CWE