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CVE-2023-52458

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
23/02/2024
Last modified:
04/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> block: add check that partition length needs to be aligned with block size<br /> <br /> Before calling add partition or resize partition, there is no check<br /> on whether the length is aligned with the logical block size.<br /> If the logical block size of the disk is larger than 512 bytes,<br /> then the partition size maybe not the multiple of the logical block size,<br /> and when the last sector is read, bio_truncate() will adjust the bio size,<br /> resulting in an IO error if the size of the read command is smaller than<br /> the logical block size.If integrity data is supported, this will also<br /> result in a null pointer dereference when calling bio_integrity_free.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10.215 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11.0 (including) 5.15.148 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16.0 (including) 6.1.75 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2.0 (including) 6.6.14 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7.0 (including) 6.7.2 (excluding)

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


References to Advisories, Solutions, and Tools