CVE-2016-7154 - Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS admin

CVE-2016-7154

Summary

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

References

Vulnerable Configurations

cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:*

CVSS

Base:	7.2 (as of 10-04-2017 - 01:59)
Impact:
Exploitability:

CWE

CWE-416

CAPEC

Access

Vector	Complexity	Authentication
LOCAL	LOW	NONE

Impact

Confidentiality	Integrity	Availability
COMPLETE	COMPLETE	COMPLETE

cvss-vector via4

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

refmap via4

bid	92863
confirm	http://support.citrix.com/article/CTX216071 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://xenbits.xen.org/xsa/advisory-188.html http://xenbits.xen.org/xsa/xsa188.patch
debian	DSA-3663
misc	http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
sectrack	1036754

Last major update

10-04-2017 - 01:59

Published

21-09-2016 - 14:25

Last modified

10-04-2017 - 01:59