CVE-2017-2618

MEDIUM

Linux Kernel <4.9.10 - Use After Free

Title source: llm

Description

A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.

References (8)

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/96272

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0931

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0932

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0933

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618

[Patch, Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125

[Patch, Third Party Advisory] https://marc.info/?l=selinux&m=148588165923772&w=2

[Third Party Advisory] https://www.debian.org/security/2017/dsa-3791

Scores

CVSS v3 5.5

EPSS 0.0005

EPSS Percentile 15.4%

Attack Vector LOCAL

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

Classification

CWE

CWE-682 CWE-193

Status published

Affected Products (11)

linux/linux_kernel < 4.9.10

debian/debian_linux

redhat/enterprise_linux

redhat/enterprise_linux_desktop

redhat/enterprise_linux_server

redhat/enterprise_linux_server_aus

redhat/enterprise_linux_server_eus

redhat/enterprise_linux_workstation

Timeline

Published Jul 27, 2018

Tracked Since Feb 18, 2026