CVE-2024-31142

x86: Incorrect logic for BTC/SRSO mitigations

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

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

Multiple vulnerabilities have been discovered in Xen, the worst of which could lead to privilege escalation. Versions greater than or equal to 4.17.4 are affected.

*Credits: This issue was discovered by Andrew Cooper of XenServer.

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-28 CVE Reserved
2024-05-16 CVE Published
2025-03-27 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-693: Protection Mechanism Failure

CAPEC

References (1)

URL	Tag	Source
https://xenbits.xenproject.org/xsa/advisory-455.html

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				*		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				*		-		Affected
Suse Search vendor "Suse"		Sle-module-basesystem Search vendor "Suse" for product "Sle-module-basesystem"				*		-		Affected
Suse Search vendor "Suse"		Sle-module-server-applications Search vendor "Suse" for product "Sle-module-server-applications"				*		-		Affected
Suse Search vendor "Suse"		Sle-sdk Search vendor "Suse" for product "Sle-sdk"				*		-		Affected
Suse Search vendor "Suse"		Sle Hpc-ltss Search vendor "Suse" for product "Sle Hpc-ltss"				*		-		Affected
Suse Search vendor "Suse"		Sle Hpc Search vendor "Suse" for product "Sle Hpc"				*		-		Affected
Suse Search vendor "Suse"		Sled Search vendor "Suse" for product "Sled"				*		-		Affected
Suse Search vendor "Suse"		Sles-ltss Search vendor "Suse" for product "Sles-ltss"				*		-		Affected
Suse Search vendor "Suse"		Sles Search vendor "Suse" for product "Sles"				*		-		Affected
Suse Search vendor "Suse"		Sles Sap Search vendor "Suse" for product "Sles Sap"				*		-		Affected