CVE-2016-9793

2016-12-2800:00:00

ubuntu.com

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

14.3%

JSON

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.

Notes

Author	Note
sbeattie	the overflows exist for SO_{SND

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchlinux< 3.13.0-107.154UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-59.80UNKNOWN
ubuntu16.10noarchlinux< 4.8.0-34.36UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1003.12UNKNOWN
ubuntu12.04noarchlinux-lts-trusty< 3.13.0-107.154~precise1UNKNOWN
ubuntu14.04noarchlinux-lts-vivid< 3.19.0-79.87~14.04.1UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-59.80~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2< 4.4.0-1040.47UNKNOWN
ubuntu16.10noarchlinux-raspi2< 4.8.0-1022.25UNKNOWN
ubuntu16.04noarchlinux-snapdragon< 4.4.0-1044.48UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	linux	< 3.13.0-107.154	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-59.80	UNKNOWN
ubuntu	16.10	noarch	linux	< 4.8.0-34.36	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1003.12	UNKNOWN
ubuntu	12.04	noarch	linux-lts-trusty	< 3.13.0-107.154~precise1	UNKNOWN
ubuntu	14.04	noarch	linux-lts-vivid	< 3.19.0-79.87~14.04.1	UNKNOWN
ubuntu	14.04	noarch	linux-lts-xenial	< 4.4.0-59.80~14.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-raspi2	< 4.4.0-1040.47	UNKNOWN
ubuntu	16.10	noarch	linux-raspi2	< 4.8.0-1022.25	UNKNOWN
ubuntu	16.04	noarch	linux-snapdragon	< 4.4.0-1044.48	UNKNOWN