CVE-2018-10840

Severity CVSS v4.0:

Pending analysis

Type:

CWE-122 Heap-based Buffer Overflow

Publication date:

16/07/2018

Last modified:

17/06/2026

Description

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.

Impact

Vector 3.x

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

Base Score: 6.60 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Physical
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

6.60

Severity 3.x

MEDIUM

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:-:::::::*
cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

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

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel:-:::::::*
cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

CVE-2018-10840

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools