Description
Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.
References (9)
Core 9
Core References
Third Party Advisory x_refsource_confirm
http://source.android.com/security/bulletin/2016-11-01.html
Issue Tracking x_refsource_confirm
https://bugzilla.kernel.org/show_bug.cgi?id=116461
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3159-1
Issue Tracking x_refsource_confirm
https://forums.grsecurity.net/viewtopic.php?f=3&t=4363
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3159-2
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94138
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3
Scores
CVSS v3
5.5
EPSS
0.0005
EPSS Percentile
16.5%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Details
CWE
CWE-362
Status
published
Products (1)
linux/linux_kernel
< 4.5.3
Published
Nov 16, 2016
Tracked Since
Feb 18, 2026