CVE-2017-16939

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

24/11/2017

Last modified:

20/04/2025

Description

The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

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::::::::	2.6.28 (including)	3.2.97 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.3 (including)	3.16.52 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.17 (including)	3.18.86 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.19 (including)	4.1.48 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.2 (including)	4.4.104 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.60 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.13.11 (excluding)
cpe:2.3:o:debian:debian_linux:8.0:::::::*

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

CVE-2017-16939

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools