National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-8944 Detail

Description

The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.

Source:  MITRE      Last Modified:  08/06/2016

Quick Info

CVE Dictionary Entry:
CVE-2015-8944
Original release date:
08/06/2016
Last revised:
11/28/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 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 (legend)
Impact Score:
3.6
Exploitability Score:
1.8
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.3 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable - Victim must voluntarily interact with attack mechanism
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://source.android.com/security/bulletin/2016-08-01.html Vendor Advisory External Source CONFIRM http://source.android.com/security/bulletin/2016-08-01.html
http://www.openwall.com/lists/kernel-hardening/2016/04/06/22 Mailing List; Third Party Advisory; VDB Entry External Source MLIST [kernel-hardening] 20160406 Re: [PATCH] KERNEL: resource: Fix bug on leakage in /proc/iomem file
http://www.securityfocus.com/bid/92222 External Source BID 92222
https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=e758417e7c31b975c862aa55d0ceef28f3cc9104 Issue Tracking; Patch External Source CONFIRM https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=e758417e7c31b975c862aa55d0ceef28f3cc9104

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 4 change records found - show changes