Medium severity · published Jun 7, 2016
CVE-2016-5242
The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer…
5.6
CVSS
0.3%
EPSS
No
On KEV
Description
The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer dereference and host OS crash) by creating concurrent domains and holding references to them, related to VMID exhaustion.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% 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; 4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5242
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5242
www.debian.org
http://www.debian.org/security/2016/dsa-3633
www.securityfocus.com
http://www.securityfocus.com/bid/91015
www.securitytracker.com
http://www.securitytracker.com/id/1036035
Vendor Advisory
http://xenbits.xen.org/xsa/advisory-181.html
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