CVE-2018-17972

Public on 2018-11-05
Modified on 2018-11-08
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.
Severity
Medium
CVSS v3 Base Score
3.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2018-11-07 21:58 ALAS2-2018-1100
Amazon Linux 1 kernel 2018-11-05 19:47 ALAS-2018-1100

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD CVSSv2 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N
NVD CVSSv3 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N