VDB
CVE-2024-31143
CVE-2024-31143
PUBLISHED
CVSS 7.5 HIGH
double unlock in x86 guest IRQ handling
Reported by xen · Published July 18, 2024
An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.
Risk scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | consult Xen advisory XSA-458 |
| Xen | Xen | * |
| xen | xen | 4.4 |
Timeline
- Jul 16, 2024 CVE Published
- Jul 18, 2024 PoC Published (2 in total, the first dated here)
- Jul 19, 2024 EPSS Score (30 in total, the first dated here)
- Oct 4, 2024 Coalition ESS Score (8 in total, the first dated here)
- Jan 13, 2026 CVE Updated
- Mar 31, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
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