CVE-2019-18675

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

25/11/2019

Last modified:

24/02/2023

Description

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.

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::::::::		3.16.60 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.17 (including)	3.18.113 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.19 (including)	4.4.137 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.108 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.49 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.16.15 (excluding)

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

CVE-2019-18675

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools