CVE-2016-5242

Severity: medium (CVSS 5.6 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-06-07 · updated 2026-06-17

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.

Affected products

xen: 4.4.0, 4.4.0-rc1, 4.4.1, 4.4.2, 4.4.3, 4.4.4 (+6)

References

http://www.debian.org/security/2016/dsa-3633
http://www.securityfocus.com/bid/91015
http://www.securitytracker.com/id/1036035
http://xenbits.xen.org/xsa/advisory-181.html
http://www.debian.org/security/2016/dsa-3633
http://www.securityfocus.com/bid/91015
http://www.securitytracker.com/id/1036035
http://xenbits.xen.org/xsa/advisory-181.html

Get alerted when CVE-2016-5242 or the next vulnerability affects your stack