CVE-2023-0459
Medium
Description
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47
SeverityMedium
CVSS6.5
Exploit probability—
Product
Linux Kernel
PublishedMay 25, 2023
First seenMay 25, 2023
Weakness typeCWE-763CWE-763
How to fix
Update
- linux linux_kernel4.14.307, 4.19.274, 5.4.233, 5.10.170, 5.15.96, 6.1.14, 6.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.14.307, 4.19.0 ≤ v < 4.19.274, 5.4.0 ≤ v < 5.4.233, 5.10.0 ≤ v < 5.10.170, 5.15.0 ≤ v < 5.15.96, 6.1.0 ≤ v < 6.1.14, 6.2.0 ≤ v < 6.2.1 | 4.14.307, 4.19.274, 5.4.233, 5.10.170, 5.15.96, 6.1.14, 6.2.1 |
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