CVE-2023-1252
High
Description
A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMar 23, 2023
First seenMar 23, 2023
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel5.10.80, 5.14.19, 5.15.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.6 ≤ v < 5.10.80, 5.11 ≤ v < 5.14.19, 5.15 ≤ v < 5.15.3 | 5.10.80, 5.14.19, 5.15.3 |
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