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().
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2Patch
- https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0bPatch
- https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6cPatch
- https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6Patch
- https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7Patch
- https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2Patch
- https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0bPatch
- https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6cPatch
- https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6Patch
- https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.