CVE-2023-4273
Medium
Description
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.
SeverityMedium
CVSS6.0
Exploit probability—
Product
Linux Kernel
PublishedAug 9, 2023
First seenAug 9, 2023
Weakness typeCWE-121CWE-121
How to fix
Update
- linux linux_kernel6.4 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 6.4, 6.5 | 6.4 |
| fedoraproject fedora | 37, 38 | — |
| redhat enterprise_linux | 9.0 | — |
| debian debian_linux | 11.0, 12.0 | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
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