CVE-2017-5967

Severity: medium (CVSS 4.0 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-02-14 · updated 2026-06-17
Weakness: CWE-200

Description

The time subsystem in the Linux kernel through 4.9.9, when CONFIG_TIMER_STATS is enabled, allows local users to discover real PID values (as distinguished from PID values inside a PID namespace) by reading the /proc/timer_list file, related to the print_timer function in kernel/time/timer_list.c and the __timer_stats_timer_set_start_info function in kernel/time/timer.c.

Affected products

Linux kernel: through 4.9.9

References

http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=dfb4357da6ddbdf57d583ba64361c9d792b0e0b1
http://www.securityfocus.com/bid/96271
https://bugzilla.kernel.org/show_bug.cgi?id=193921
http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=dfb4357da6ddbdf57d583ba64361c9d792b0e0b1
http://www.securityfocus.com/bid/96271
https://bugzilla.kernel.org/show_bug.cgi?id=193921

Get alerted when CVE-2017-5967 or the next vulnerability affects your stack