Vulnerability Details : CVE-2014-2986
The vgic_distr_mmio_write function in the virtual guest interrupt controller (GIC) distributor (arch/arm/vgic.c) in Xen 4.4.x, when running on an ARM system, allows local guest users to cause a denial of service (NULL pointer dereference and host crash) via unspecified vectors.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2014-2986
- cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-2986
0.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-2986
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:A/AC:L/Au:S/C:N/I:N/A:C |
5.1
|
6.9
|
NIST |
CWE ids for CVE-2014-2986
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The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-2986
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http://www.securitytracker.com/id/1030146
Xen GIC Distributor Access Control Flaw Lets Local Users on the Guest Operating System Deny Service on the Host Operating System - SecurityTracker
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http://www.openwall.com/lists/oss-security/2014/04/23/4
oss-security - Re: Xen Security Advisory 94 - ARM hypervisor crash on guest interrupt controller access
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http://www.securityfocus.com/bid/67047
Xen CVE-2014-2986 Remote Denial of Service Vulnerability
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http://xenbits.xen.org/xsa/advisory-94.html
XSA-94 - Xen Security AdvisoriesPatch;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2014/04/23/3
oss-security - Xen Security Advisory 94 - ARM hypervisor crash on guest interrupt controller access
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http://www.openwall.com/lists/oss-security/2014/04/23/5
oss-security - Xen Security Advisory 94 (CVE-2014-2986) - ARM hypervisor crash on guest interrupt controller access
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