5.5

CVE-2023-52631

fs/ntfs3: Fix an NULL dereference bug

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15 < 5.15.149
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.78
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.17
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.5
Linux ≫ Linux Kernel Version6.8 Updaterc1
Linux ≫ Linux Kernel Version6.8 Updaterc2
Linux ≫ Linux Kernel Version6.8 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.129
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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