CVE-2017-5967

MEDIUM4.0

The time subsystem in the Linux kernel through 4

Published Feb 14, 2017

Modified 1 years ago

No fix available

Details

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.

References

WEBhttp://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=dfb4357da6ddbdf57d583ba64361c9d792b0e0b1 WEBhttp://www.securityfocus.com/bid/96271 WEBhttps://bugzilla.kernel.org/show_bug.cgi?id=193921 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2017-5967

CVSS Analysis

CVSS v3.0

4.0

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

NoneI:N

Availability

NoneA:N

4/CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Ecosystems

Timeline

PublishedFeb 14, 2017

ModifiedAug 5, 2024