Slab-out-of-bounds Vulnerability in Linux Kernel Affected by NTFS Module

CVE-2023-53420

What is CVE-2023-53420?

A vulnerability in the Linux kernel's NTFS module has been identified, which can lead to a slab-out-of-bounds condition when improperly handling extended attributes. Specifically, the issue arises in the function ntfs_listxattr, where an invalid memory address may be accessed if the name length of an extended attribute is zero. This flaw has potential implications for system stability and security, necessitating prompt attention to the vulnerability. The patch has corrected the iteration logic to prevent access to invalid memory regions, thereby enhancing the kernel's resilience against such exploitation.

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