CVE-2016-9793

Severity CVSS v4.0:

Pending analysis

Type:

CWE-119 Buffer Errors

Publication date:

28/12/2016

Last modified:

12/04/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

7.20

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.5 (including)	3.12.69 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.13 (including)	3.16.40 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.17 (including)	3.18.52 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.19 (including)	4.1.50 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.2 (including)	4.4.38 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.8.14 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2016-9793

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools