CVE-2017-10918
Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.
02 Description
Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.
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
- 3.67% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.1% of scored records. A rank, not a probability.
- NVD base score
- 10.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. 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
- 2017-07-05 01:00Z9 YR AGO
- Last updated
- 2024-08-05 17:50Z2 YR AGO
- Reserved
- 2017-07-04
- 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
- 1d11a76b9e32a19432de4f380c586a3231b4319cf2b3086416ca4f06cad3ad31
05 Affected products
06 References
- www.securitytracker.com1038732http://www.securitytracker.com/id/1038732
- security.gentoo.orgGLSA-201708-03https://security.gentoo.org/glsa/201708-03
- www.debian.orgDSA-3969http://www.debian.org/security/2017/dsa-3969
- security.gentoo.orgGLSA-201710-17https://security.gentoo.org/glsa/201710-17
- www.securityfocus.com99161http://www.securityfocus.com/bid/99161
- xenbits.xen.orghttps://xenbits.xen.org/xsa/advisory-222.html
07 Fixed in
Debian 12
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- xen Fixed in 4.8.1-1+deb9u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- xen Fixed in 4.4.2-0ubuntu0.14.04.12
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- xen Fixed in 4.6.5-0ubuntu1.2
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.