CVE-2024-31142

x86: Incorrect logic for BTC/SRSO mitigations

Published May 16, 2024 CVSS 3.1 · 7.5 High EPSS 17.4% KEV · Not listed
Description
Because of a logical error in XSA-407 (Branch Type Confusion), the
mitigation is not applied properly when it is intended to be used.
XSA-434 (Speculative Return Stack Overflow) uses the same
infrastructure, so is equally impacted.

For more details, see:
https://xenbits.xen.org/xsa/advisory-407.html
https://xenbits.xen.org/xsa/advisory-434.html

Remediation

Vendor Workaround

There are no mitigations.

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5836-1 xen security update
History
Type Values Removed Values Added
First Time appeared Fedoraproject
Fedoraproject fedora
CPEs cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*
Vendors & Products Fedoraproject
Fedoraproject fedora
Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
XEN
Published
Updated
Nov 4, 2025, 6:30 PM
Reserved
Mar 28, 2024, 6:14 PM
Status
Analyzed
Published
May 16, 2024, 2:15 PM
Modified
Jun 17, 2026, 7:27 AM