CVE-2022-42331
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.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | 4.5.0 | 4.17.0.x |
| fedoraproject / fedora | 37 | 37.x |
| fedoraproject / fedora | 38 | 38.x |
- http://www.openwall.com/lists/oss-security/2023/03/21/3
- http://xenbits.xen.org/xsa/advisory-429.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/
- https://security.gentoo.org/glsa/202402-07
- https://www.debian.org/security/2023/dsa-5378
- https://xenbits.xenproject.org/xsa/advisory-429.txt
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