CVE-2018-5244
CVSS V2 Medium 4.9
CVSS V3 Medium 6.5
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.
Overview
- CVE ID
- CVE-2018-5244
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2018-01-05T18:29:00
- Last Modified Date
- 2018-10-31T10:32:20
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | 1 | OR | 4.10.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| 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 | |
| https://security.gentoo.org/glsa/201810-06 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-5244 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5244 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:54:32 | Added to TrackCVE | |||
| 2022-12-03 00:42:28 | 2018-01-05T18:29Z | 2018-01-05T18:29:00 | CVE Published Date | updated |
| 2022-12-03 00:42:28 | 2018-10-31T10:32:20 | CVE Modified Date | updated | |
| 2022-12-03 00:42:28 | Modified | Vulnerability Status | updated |