CVE-2023-53457

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

01/10/2025

Last modified:

16/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the filesystem is read-only before calling txBegin, and returning with appropiate error code.

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::::::::	2.6.12.1 (including)	4.14.324 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.293 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.255 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.192 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.123 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.42 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.4.7 (excluding)
cpe:2.3:o:linux:linux_kernel:2.6.12:-::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5::::::

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

CVE-2023-53457

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools