National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-8650 Detail

Description

The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.

Source:  MITRE
Description Last Modified:  11/27/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
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): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9

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

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=f5527fffff3f002b0a6b376163613b82f69de073 Issue Tracking Patch Vendor Advisory
http://seclists.org/fulldisclosure/2016/Nov/76 Mailing List
http://www.openwall.com/lists/oss-security/2016/11/24/8 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94532
http://www.securitytracker.com/id/1037968
https://access.redhat.com/errata/RHSA-2017:0931
https://access.redhat.com/errata/RHSA-2017:0932
https://access.redhat.com/errata/RHSA-2017:0933
https://access.redhat.com/errata/RHSA-2018:1854
https://bugzilla.redhat.com/show_bug.cgi?id=1395187 Issue Tracking
https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073 Issue Tracking Patch Third Party Advisory
https://source.android.com/security/bulletin/2017-03-01.html

Technical Details

Vulnerability Type (View All)

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-8650
NVD Published Date:
11/27/2016
NVD Last Modified:
06/19/2018