CVE-2016-2270: Input Validation
First published: Fri Feb 19 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian | =7.0 | |
| Debian | =8.0 | |
| Fedora | =22 | |
| Fedora | =23 | |
| Xen XAPI | <=4.6.1 | |
| Oracle VM Server | =3.4 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2016-2270?
The severity of CVE-2016-2270 is classified as high due to the potential for local guest administrators to cause denial of service by rebooting the host.
How do I fix CVE-2016-2270?
To fix CVE-2016-2270, update your affected Xen or operating system version to a patched version that resolves this vulnerability.
Which software versions are affected by CVE-2016-2270?
CVE-2016-2270 affects Xen versions up to 4.6.1 and various Linux distributions including Debian 7.0, 8.0 and Fedora versions 22 and 23.
What type of vulnerability is CVE-2016-2270?
CVE-2016-2270 is a local denial of service vulnerability that allows guest administrators to reboot the host through MMIO page mapping issues.
Is CVE-2016-2270 a critical vulnerability for virtualized environments?
Yes, CVE-2016-2270 poses a critical risk for virtualized environments as it can lead to service disruptions affecting all guests on the host.
- agent/type
- collector/mitre-cve
- source/MITRE
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- agent/weakness
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- agent/event
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- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/debian
- canonical/debian
- version/debian/7.0
- version/debian/8.0
- vendor/fedoraproject
- canonical/fedora
- version/fedora/22
- version/fedora/23
- vendor/xen
- canonical/xen xapi
- version/xen xapi/4.6.1
- vendor/oracle
- canonical/oracle vm server
- version/oracle vm server/3.4