CVE-2015-8615

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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).

References

http://www.securityfocus.com/bid/79644

http://www.securitytracker.com/id/1034512

http://xenbits.xen.org/xsa/advisory-169.html

Details

Source: MITRE

Published: 2016-01-08

Updated: 2016-11-28

Type: CWE-254

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

Impact Score: 1.4

Exploitability Score: 3.1

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
91198Debian DLA-479-1 : xen security updateNessusDebian Local Security Checks
high