CVE-2016-8650 Detail

Current 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.


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:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

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=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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-399 Resource Management Errors cwe source acceptance level NIST  
CWE-20 Improper Input Validation cwe source acceptance level NIST  

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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
Source:
Red Hat, Inc.