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CVE-2016-9576 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0	CVE	PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html	CVE	Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0817.html	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1403145	CVE	Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0	CVE	PatchVendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14	CVE	Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/19	CVE	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/94821	CVE	Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0	[email protected]	PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html	[email protected]	Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0817.html	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1403145	[email protected]	Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0	[email protected]	PatchVendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14	[email protected]	Release NotesVendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/19	[email protected]	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/94821	[email protected]	Third Party AdvisoryVDB Entry

see all 38 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 4.0, < 4.4.38 >= 4.5, < 4.8.14
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 12, 2023	CVE Modified	[email protected]
Feb 2, 2023	CVE Modified	[email protected]
Jan 17, 2023	Modified Analysis	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Dec 31, 2017	CVE Modified	[email protected]
Jan 18, 2017	CVE Modified	[email protected]
Jan 7, 2017	CVE Modified	[email protected]
Dec 31, 2016	CVE Modified	[email protected]
Dec 28, 2016	Initial Analysis	[email protected]