CVE-2015-8615

Published: 8 January 2016

The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ).

Notes

Author	Note
mdeslaur	4.6 only

Priority

Cvss 3 Severity Score

5.0

Score breakdown

Status

Package	Release	Status
xen Launchpad, Ubuntu, Debian	precise	Not vulnerable
	trusty	Does not exist (trusty was not-affected)
	upstream	Needs triage
	vivid	Not vulnerable
	wily	Not vulnerable
	Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter	Value
Base score	5.0
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

References

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