vulnwire
7.5high

CVE-2017-10916

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.3%
percentile 72%
Public exploits
0
none known

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.

Exploit prediction (EPSS)

1.35% probability of exploitation in the next 30 days, higher than 72% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • xenbits.xen.org /xsa/advisory-220.html · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201708-03 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • debian.org /security/2017/dsa-3969 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • securitytracker.com /id/1038730 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/99167 · vdb-entry, x_refsource_BID, x_transferred

Sources

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