fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts.
https://vigilance.fr/vulnerability/Linux-kernel-information-disclosure-about-keyboard-11131
https://security-tracker.debian.org/tracker/CVE-2011-4915
https://seclists.org/oss-sec/2011/q4/571
http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-4915.html
https://lkml.org/lkml/2011/11/7/340
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2ef990ab5a6705a356d146dd773a3b359787497
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0499680a42141d86417a8fbaa8c8db806bea1201
Source: Mitre, NVD
Published: 2020-02-20
Updated: 2020-02-25
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
EPSS: 0.0008