VulnerabilityModified
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.
MEDIUM 5.5EPSS 0.27%
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.27% probability · 20th percentile
- CISA KEV
- Not listed
- Affected
- xen/xen · fedoraproject/fedora
- Source
- security@xen.org
References
- http://www.openwall.com/lists/oss-security/2023/03/21/3Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-429.htmlVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202402-07
- https://www.debian.org/security/2023/dsa-5378Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-429.txtVendor Advisory
- http://www.openwall.com/lists/oss-security/2023/03/21/3Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-429.htmlVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202402-07
- https://www.debian.org/security/2023/dsa-5378Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-429.txtVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.