CVE-2018-17972
kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · September 27, 2018
Updated · June 28, 2026
Description
An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel. An attacker with a local account can trick the stack unwinder code to leak stack contents to userspace. The fix allows only root to inspect the kernel stack of an arbitrary task.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor