CVE-2016-2270
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.48% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 73.4% of scored records. A rank, not a probability.
- NVD base score
- 6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-02-19 16:00Z10 YR AGO
- Last updated
- 2024-08-05 23:24Z2 YR AGO
- Reserved
- 2016-02-09
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 1af44ab5d8d5f09a8f2fdc47b37a62ad03a21bcc4b0c1e8965e9e81203cd2c99
05 Affected products
06 References
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- www.debian.orgDSA-3519http://www.debian.org/security/2016/dsa-3519
- lists.fedoraproject.orgFEDORA-2016-e48f4bd14fhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
- lists.fedoraproject.orgFEDORA-2016-f8121efdachttp://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-154.html
- www.securitytracker.com1035042http://www.securitytracker.com/id/1035042
- security.gentoo.orgGLSA-201604-03https://security.gentoo.org/glsa/201604-03
07 Fixed in
Debian 12
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- xen Fixed in 4.4.2-0ubuntu0.14.04.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.