PT-2016-3936 · Xen · Xen
Jan Beulich
+1
·
Published
2016-01-08
·
Updated
2024-06-15
·
CVE-2015-8615
CVSS v3.1
5.0
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
Xen version 4.6
Description
The issue allows local HVM guest OS users to cause a denial of service by making a large number of changes to the callback method, resulting in an excessive number of printk console messages. This occurs due to the lack of limitation on the number of messages in the hvm set callback via function.
Recommendations
For Xen version 4.6, consider restricting changes to the callback method to prevent excessive printk console messages until a patch is available. As a temporary workaround, limiting the number of changes to the callback method (HVM PARAM CALLBACK IRQ) may help minimize the risk of denial of service.
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Xen