CVE-2023-4693
Medium
Description
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Gnu Grub2
PublishedOct 25, 2023
First seenOct 25, 2023
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- gnu grub22.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu grub2 | v < 2.12 | 2.12 |
| redhat enterprise_linux | 8.0, 9.0 | — |
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