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)
Core 8
Core References
Patch, Third Party Advisory mailing-list
x_refsource_mlist
https://marc.info/?l=selinux&m=148588165923772&w=2
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3791
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:0932
Patch, Vendor Advisory x_refsource_confirm
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:0933
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:0931
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/96272
Scores
CVSS v3
5.5
EPSS
0.0046
EPSS Percentile
36.1%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-682
CWE-193
Status
published
Products (11)
debian/debian_linux
8.0
linux/linux_kernel
< 4.9.10
redhat/enterprise_linux
7.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_server_aus
7.3
redhat/enterprise_linux_server_aus
7.4
redhat/enterprise_linux_server_eus
7.3
redhat/enterprise_linux_server_eus
7.4
redhat/enterprise_linux_server_eus
7.5
... and 1 more
Published
Jul 27, 2018
Tracked Since
Feb 18, 2026