CVE-2016-9793

CVE Details

Release Date:	2016-12-02
Impact:	Moderate	What is this?

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernelbefore 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.

See more information about CVE-2016-9793 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	6.9
Vector String:	AV:L/AC:M/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3510	2017-01-12
Oracle Linux version 6 (dtrace-modules-3.8.13-118.16.2.el6uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 6 (dtrace-modules-4.1.12-61.1.25.el6uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3510	2017-01-12
Oracle Linux version 7 (dtrace-modules-3.8.13-118.16.2.el7uek)	ELSA-2017-3509	2017-01-12
Oracle Linux version 7 (dtrace-modules-4.1.12-61.1.25.el7uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 7 (kernel)	ELSA-2017-0933	2017-04-12
Oracle Linux version 7 (kernel)	ELSA-2017-0933-1	2017-04-13
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3508	2017-01-12
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3509	2017-01-12
Oracle VM version 3.2 (kernel-uek)	OVMSA-2017-0006	2017-01-12
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0005	2017-01-12
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0004	2017-01-12