Virtual Interrupt Injection Vulnerability in Linux Kernel Affecting AMD SEV-SNP and AMD SEV-ES
CVE-2024-25743

7.1HIGH

Key Information:

Vendor

AMD
Vendor
CVE Published:
15 May 2024

What is CVE-2024-25743?

A vulnerability exists in the Linux kernel versions up to 6.9, where an untrusted hypervisor is capable of injecting specific virtual interrupts (0 and 14) at any arbitrary moment. This capability can lead to the triggering of the SIGFPE (Signal Floating Point Exception) signal handler within user applications. The risk mainly impacts systems utilizing AMD's Secure Encrypted Virtualization technologies, specifically SEV-SNP and SEV-ES, thereby posing potential threats to the integrity and availability of running applications.

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References

https://www.amd.com/en/resources/product-security/bulleti...
https://bugzilla.suse.com/show_bug.cgi?id=1223307
https://bugzilla.redhat.com/show_bug.cgi?id=2270836

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

JSON
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