5.6med

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 caus…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.6
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 28%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

0.34% probability of exploitation in the next 30 days, higher than 28% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.6CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD2.04.7AV:L/AC:M/Au:N/C:N/I:N/A:C

References

  • securityfocus.com /bid/91015 · vdb-entry, x_refsource_BID, x_transferred
  • xenbits.xen.org /xsa/advisory-181.html · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1036035 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • debian.org /security/2016/dsa-3633 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.