CVE-2024-31142

x86: Incorrect logic for BTC/SRSO mitigations

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

Workaround:

  • There are no mitigations.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 13.59% Top 10%
Affected: Xen Xen
Published at:
Updated at:

References

Link Tags
https://xenbits.xenproject.org/xsa/advisory-455.html

Frequently Asked Questions

What is the severity of CVE-2024-31142?
CVE-2024-31142 has been scored as a high severity vulnerability.
How to fix CVE-2024-31142?
As a workaround for remediating CVE-2024-31142: There are no mitigations.
Is CVE-2024-31142 being actively exploited in the wild?
It is possible that CVE-2024-31142 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~14% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-31142?
CVE-2024-31142 affects Xen Xen.
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