CVE - CVE-2023-52631

CVE-ID
CVE-2023-52631	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 URL:https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 MISC:https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b URL:https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b MISC:https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c URL:https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c MISC:https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 URL:https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 MISC:https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7 URL:https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7
Assigning CNA
kernel.org
Date Record Created
20240306	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240306)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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