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Fencer Vulns
high 8.2

CVE-2017-7228 json

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x.

published 2017-04-04 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16263

cvss
8.2
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
1
Exploit-DB

Summary

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

Patch / fix

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

debian advisories DEBIAN-CVE-2017-7228

  • xen Ubuntu 14.04 LTS 4.4.2-0ubuntu0.14.04.11
  • xen Ubuntu 16.04 LTS 4.6.5-0ubuntu1.1

ubuntu advisories UBUNTU-CVE-2017-7228

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 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.4.4_16-54.1
  • xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 4.2.5_21-38.1
  • xen SLES for SAP 12 SP2, SLES 12 SP2, SLED 12 SP2 +1 more 4.7.2_02-36.1
  • xen SLES for SAP 12, SLES 12-LTSS 4.4.4_16-22.36.1

suse advisories SUSE-SU-2017:1081-1SUSE-SU-2017:1080-1SUSE-SU-2017:1058-1SUSE-SU-2017:0983-1

  • xen Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 4.7.2-r0
  • xen Alpine 3.4 4.6.3-r8

alpine advisories ALPINE-CVE-2017-7228

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

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-2017-7228 updated cvss 8.0

xen: x86: broken check in memory_exchange() permits PV guest breakout (XSA-212)

  • Red Hat Enterprise Linux 5 xen
    affected: 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

Timeline

  1. Published
  2. First public exploit (EDB-41870)

Exploit prediction

1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-41870 Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout local, 2017-04-11

CVSS scores

assigned by version score vector
NVD 3.0 8.2 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

References

Sources

Fencer Vulns 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.