CVE-2016-7916 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3 Issue Tracking  Patch  Third Party Advisory 
http://source.android.com/security/bulletin/2016-11-01.html Third Party Advisory 
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4 Release Notes  Vendor Advisory 
http://www.securityfocus.com/bid/94138 Third Party Advisory  VDB Entry 
http://www.ubuntu.com/usn/USN-3159-1
http://www.ubuntu.com/usn/USN-3159-2
https://bugzilla.kernel.org/show_bug.cgi?id=116461 Issue Tracking 
https://forums.grsecurity.net/viewtopic.php?f=3&t=4363 Issue Tracking 
https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3 Issue Tracking  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7916
NVD Published Date:
11/16/2016
NVD Last Modified:
01/17/2017
Source:
MITRE