CVEvulnerability
CVE-2018-5244
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-01-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 6.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-119
Description
In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
Affected configurations
• xen xen (>= 4.10.0)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- http://www.securityfocus.com/bid/102433 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040774 www.securitytracker.com
- https://security.gentoo.org/glsa/201810-06 security.gentoo.org
- https://xenbits.xen.org/xsa/advisory-253.html Issue Tracking, Mitigation, Vendor Advisory
- http://www.securityfocus.com/bid/102433 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040774 www.securitytracker.com
- https://security.gentoo.org/glsa/201810-06 security.gentoo.org
- https://xenbits.xen.org/xsa/advisory-253.html Issue Tracking, Mitigation, Vendor Advisory