CVE-2022-42331
MEDIUMXen 4.5.0-4.16.x - Speculative Execution Vulnerability in 32-bit SYSCALL Path
Title source: llmDescription
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.
References (7)
Core 7
Core References
Vendor Advisory
http://xenbits.xen.org/xsa/advisory-429.html
Vendor Advisory
https://xenbits.xenproject.org/xsa/advisory-429.txt
Mailing List, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2023/03/21/3
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5378
Third Party Advisory
https://security.gentoo.org/glsa/202402-07
Scores
CVSS v3
5.5
EPSS
0.0006
EPSS Percentile
17.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
Status
published
Products (3)
fedoraproject/fedora
37
fedoraproject/fedora
38
xen/xen
4.5.0 - 4.17.0
Published
Mar 21, 2023
Tracked Since
Feb 18, 2026