CVE-2022-42331
Medium
Description
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Xen
PublishedMar 21, 2023
First seenMar 21, 2023
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xen xen | 4.5.0 ≤ v ≤ 4.17.0 | — |
| fedoraproject fedora | 37, 38 | — |
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