CVE-2024-31146
PCI device pass-through with shared resources
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
When multiple devices share resources and one of them is to be passed
through to a guest, security of the entire system and of respective
guests individually cannot really be guaranteed without knowing
internals of any of the involved guests. Therefore such a configuration
cannot really be security-supported, yet making that explicit was so far
missing. Resources the sharing of which is known to be problematic include, but
are not limited to
- - PCI Base Address Registers (BARs) of multiple devices mapping to the same page (4k on x86),
- - INTx lines.
When multiple devices share resources and one of them is to be passed through to a guest, security of the entire system and of respective guests individually cannot really be guaranteed without knowing internals of any of the involved guests. Therefore such a configuration cannot really be security-supported, yet making that explicit was so far missing. Resources the sharing of which is known to be problematic include, but are not limited to - - PCI Base Address Registers (BARs) of multiple devices mapping to the same page (4k on x86), - - INTx lines.
Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in privilege escalation, denial of service or information leaks.
CVSS Scores
SSVC
- Decision:Track*
Timeline
- 2024-03-28 CVE Reserved
- 2024-09-25 CVE Published
- 2024-09-25 CVE Updated
- 2024-09-26 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-461.html |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | * | - |
Affected
| ||||||
| 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-espos Search vendor "Suse" for product "Sle Hpc-espos" | * | - |
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
| ||||||
| Suse Search vendor "Suse" | Suse-manager-proxy Search vendor "Suse" for product "Suse-manager-proxy" | * | - |
Affected
| ||||||
| Suse Search vendor "Suse" | Suse-manager-server Search vendor "Suse" for product "Suse-manager-server" | * | - |
Affected
| ||||||
| Xen Search vendor "Xen" | Xen Search vendor "Xen" for product "Xen" | * | - |
Affected
| ||||||