PT-2020-7146 · Linux+1 · Linux Kernel+1

Kurt Seifried · Published 2020-02-20 · Updated 2026-03-13 · CVE-2011-4915

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 3.1

Description The issue allows local users to obtain sensitive keystroke information via access to /proc/interrupts. This is due to a problem in fs/proc/base.c in the Linux kernel.

Recommendations For Linux kernel versions through 3.1, consider restricting access to the /proc/interrupts API endpoint until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2011-4915

ECHO-7F83-AA84-4D48

Affected Products

Debian

Linux Kernel

References · 16

• 🔥 http://openwall.com/lists/oss-security/2011/11/07/9 · Exploit
• https://ubuntu.com/security/CVE-2011-4915 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2011-4915 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-4915 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0499680a42141d86417a8fbaa8c8db806bea1201 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2011-4915 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-4915 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-4915 · Vendor Advisory
• https://lkml.org/lkml/2011/11/7/340 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2011-4915 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2011-4915 · Security Note
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2ef990ab5a6705a356d146dd773a3b359787497 · Vendor Advisory
• https://t.me/cibsecurity/9980 · Telegram Post
• https://seclists.org/oss-sec/2011/q4/571 · Note
• https://vigilance.fr/vulnerability/Linux-kernel-information-disclosure-about-keyboard-11131 · Note