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CVE-2016-9793 Details

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

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=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290	CVE	PatchVendor Advisory
https://access.redhat.com/errata/RHSA-2017:0931	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0932	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0933	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1402013	CVE	Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290	CVE	PatchVendor Advisory
https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793	CVE	Third Party Advisory
https://source.android.com/security/bulletin/2017-03-01.html	CVE	Third Party 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/2016/12/03/1	CVE	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/94655	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037968	CVE	Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290	[email protected]	PatchVendor Advisory
https://access.redhat.com/errata/RHSA-2017:0931	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0932	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:0933	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1402013	[email protected]	Issue TrackingThird Party Advisory
https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290	[email protected]	PatchVendor Advisory
https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793	[email protected]	Third Party Advisory
https://source.android.com/security/bulletin/2017-03-01.html	[email protected]	Third Party 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/2016/12/03/1	[email protected]	Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/94655	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037968	[email protected]	Third Party AdvisoryVDB Entry

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 3.5, < 3.12.69 >= 3.13, < 3.16.40 >= 3.17, < 3.18.52 >= 3.19, < 4.1.50 >= 4.2, < 4.4.38
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

11 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]
Jan 17, 2023	Modified Analysis	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Dec 23, 2017	CVE Modified	[email protected]
Jul 17, 2017	CVE Modified	[email protected]
Mar 8, 2017	CVE Modified	[email protected]
Dec 31, 2016	CVE Modified	[email protected]
Dec 28, 2016	Initial Analysis	[email protected]