CVE-2023-52631

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2	Patch
https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b	Patch
https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c	Patch
https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6	Patch
https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7	Patch
https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2	Patch
https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b	Patch
https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c	Patch
https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6	Patch
https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.8:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.8:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.8:rc3::::::

History

No history.

Information

Published : 2024-04-02 07:15

Updated : 2025-04-08 19:28

NVD link : CVE-2023-52631

Mitre link : CVE-2023-52631

CVE.ORG link : CVE-2023-52631

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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