National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-9576 Detail

Current Description

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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=a0ac402cfcdc904f9772e1762b3fda112dcc56a0 Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html
http://rhn.redhat.com/errata/RHSA-2017-0817.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14 Release Notes
http://www.openwall.com/lists/oss-security/2016/12/08/19 Mailing List Patch
http://www.securityfocus.com/bid/94821
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
https://bugzilla.redhat.com/show_bug.cgi?id=1403145 Issue Tracking
https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0 Patch Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.8.13


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-9576
NVD Published Date:
12/28/2016
NVD Last Modified:
01/04/2018