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Fencer Intel
critical 9.0

CVE-2017-10915 json

The shadow-paging feature in Xen through 4.8.x mismanages page references and consequently introduces a race condition, which allows guest…

published 9y ago modified 4mo ago also EUVD-2017-2553

cvss
9.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

The shadow-paging feature in Xen through 4.8.x mismanages page references and consequently introduces a race condition, which allows guest OS users to obtain Xen privileges, aka XSA-219.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.8.1-1+deb9u3

debian advisories DEBIAN-CVE-2017-10915

  • xen Ubuntu 14.04 LTS 4.4.2-0ubuntu0.14.04.12
  • xen Ubuntu 16.04 LTS 4.6.5-0ubuntu1.2

ubuntu advisories UBUNTU-CVE-2017-10915

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xen SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 4.5.5_12-22.18.1
  • xen SLES for SAP 12, SLES 12-LTSS 4.4.4_21-22.42.1

suse advisories SUSE-SU-2017:1812-1SUSE-SU-2017:1795-1

  • xen Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 4.9.0-r0
  • xen Alpine 3.4, Alpine 3.3 4.6.6-r0
  • xen Alpine 3.5 4.7.3-r0
  • xen Alpine 3.6 4.8.2-r0

alpine advisories ALPINE-CVE-2017-10915

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2017-10915 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-10915 updated cvss 8.5

xen: x86: insufficient reference counts during shadow emulation (XSA-219)

  • Red Hat Enterprise Linux 5 xen
    affected: workaround, no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.