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.

References

Advisories
More

https://www.debian.org/security/2023/dsa-5378

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/

http://www.openwall.com/lists/oss-security/2023/03/21/3

https://xenbits.xenproject.org/xsa/advisory-429.txt

https://security.gentoo.org/glsa/202402-07

http://xenbits.xen.org/xsa/advisory-429.html

Details

Source: Mitre, NVD

Published: 2023-03-21

Updated: 2024-02-04

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00038