CVE-2019-19582 is a medium-severity denial-of-service vulnerability affecting Xen through version 4.12.x on x86 systems with 64 or more nodes. A malicious guest OS user can trigger an infinite loop in the hypervisor due to mishandled bit iteration in bitmap operations, leading to a hypervisor crash or hang. The attack requires local access to the guest OS and has low attack complexity, resulting in high availability impact. There is no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.8.0, <= 4.12.1CPE matchmatch criteria | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | ||
31CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
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