National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-4794 Detail

Current Description

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

Source:  MITRE
Description Last Modified:  05/23/2016
View Analysis Description

Evaluator Description

CWE-416: Use After Free

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2016-2574.html
http://rhn.redhat.com/errata/RHSA-2016-2584.html
http://www.openwall.com/lists/oss-security/2016/05/12/6 Exploit Third Party Advisory
http://www.securityfocus.com/bid/90625 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3053-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3054-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3055-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3056-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3057-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1335889 Issue Tracking Third Party Advisory VDB Entry
https://lkml.org/lkml/2016/4/17/125 Exploit Third Party Advisory
https://source.android.com/security/bulletin/2016-12-01.html

Technical Details

Vulnerability Type (View All)

Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4794
NVD Published Date:
05/23/2016
NVD Last Modified:
01/04/2018