Vulnerability Details : CVE-2015-8615
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).
Vulnerability category: Denial of service
Products affected by CVE-2015-8615
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-8615
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8615
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.0
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L |
3.1
|
1.4
|
NIST |
CWE ids for CVE-2015-8615
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8615
-
http://www.securityfocus.com/bid/79644
Xen 'hvm/irq.c' Denial of Service Vulnerability
-
http://xenbits.xen.org/xsa/advisory-169.html
XSA-169 - Xen Security AdvisoriesVendor Advisory
-
http://www.securitytracker.com/id/1034512
Xen HVM_PARAM_CALLBACK_IRQ Logging Error Lets Local Users on the Guest System Deny Service on the Hypervisor Console - SecurityTracker
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