Vulnerability CVE-2018-7542
Published: 2018-02-27

Description:
An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
XEN -> XEN 
Debian -> Debian linux 

 References:
http://www.securitytracker.com/id/1040776
https://security.gentoo.org/glsa/201810-06
https://www.debian.org/security/2018/dsa-4131
https://xenbits.xen.org/xsa/advisory-256.html
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