CVE-2016-2270

Severity: medium (CVSS 6.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-02-19 · updated 2026-06-17
Weakness: CWE-20

Description

Xen 4.6.x and earlier allows local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings.

Affected products

Debian Linux: 7.0, 8.0
Fedoraproject Fedora: 22, 23
Oracle Vm Server: 3.4
xen: through 4.6.1

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
http://www.debian.org/security/2016/dsa-3519
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securitytracker.com/id/1035042
http://xenbits.xen.org/xsa/advisory-154.html
https://security.gentoo.org/glsa/201604-03
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
http://www.debian.org/security/2016/dsa-3519
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securitytracker.com/id/1035042

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