PT-2024-7625 · Linux+5 · Linux Kernel+5
Dan Carpenter
·
Published
2024-01-29
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Updated
2025-04-08
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CVE-2023-52631
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a NULL dereference bug in the fs/ntfs3 component of the Linux kernel. This bug occurs when the
ntfs load attr list() function is called, and the "size" comes from le32 to cpu(attr->res.data size). On 32-bit systems, the "+ 1023" can overflow, resulting in a zero value, which causes the kmalloc to succeed and return the ZERO SIZE PTR. Then, the memcpy() function crashes with an Oops on the next line. The vulnerability can be exploited to cause a denial of service.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu