Medium severity · published Sep 21, 2016
CVE-2016-7154
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…
6.7
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7154
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7154
Third Party Advisory
http://support.citrix.com/article/CTX216071
www.c7zero.info
http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
www.debian.org
http://www.debian.org/security/2016/dsa-3663
www.oracle.com
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Third Party Advisory
http://www.securityfocus.com/bid/92863
Third Party Advisory
http://www.securitytracker.com/id/1036754
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