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.

• 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

Published

Mar 21, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-42326Xenstore: Guests can create arbitrary number of nodes via tr…5.5
• CVE-2022-42327x86: unintended memory sharing between guests On Intel syste…7.1
• CVE-2022-42328Guests can trigger deadlock in Linux netback driver T[his CN…5.5
• CVE-2022-42329Guests can trigger deadlock in Linux netback driver T[his CN…5.5
• CVE-2022-4233A vulnerability has been found in SourceCodester Event Regis…6.1
• CVE-2022-42330Guests can cause Xenstore crash via soft reset When a guest …7.5
• CVE-2022-42332x86 shadow plus log-dirty mode use-after-free In environment…7.8
• CVE-2022-42333x86/HVM pinned cache attributes mis-handling T[his CNA infor…8.6
• CVE-2022-42334x86/HVM pinned cache attributes mis-handling T[his CNA infor…6.5
• CVE-2022-42335x86 shadow paging arbitrary pointer dereference In environme…7.8
• CVE-2022-42336Mishandling of guest SSBD selection on AMD hardware The curr…3.3
• CVE-2022-42337Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…