CVE-2023-52810

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

21/05/2024

Last modified:

02/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(number of blks per page), and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used as shift exponent. Syzbot reported this bug: UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12 shift exponent -16777216 is negative

Impact

Vector 3.x

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

Base Score: 8.40 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

8.40

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.14.331 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.300 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.262 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.202 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.140 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.64 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.5.13 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6 (including)	6.6.3 (excluding)

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

CVE-2023-52810

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools