CVE-2018-5244
Xen MSR Emulation VCPU Denial of Service
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.
INFO
Published Date :
Jan. 5, 2018, 6:29 p.m.
Last Modified :
Oct. 31, 2018, 10:32 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-5244.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/102433 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1040774 | |
| https://security.gentoo.org/glsa/201810-06 | |
| https://xenbits.xen.org/xsa/advisory-253.html | Issue Tracking Mitigation Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-5244 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-5244 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 31, 2018
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201810-06 [No Types Assigned] -
CVE Modified by [email protected]
May. 13, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1040774 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 19, 2018
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/102433 No Types Assigned http://www.securityfocus.com/bid/102433 Third Party Advisory, VDB Entry Changed Reference Type https://xenbits.xen.org/xsa/advisory-253.html No Types Assigned https://xenbits.xen.org/xsa/advisory-253.html Issue Tracking, Mitigation, Vendor Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions from (including) 4.10.0 -
CVE Modified by [email protected]
Jan. 10, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/102433 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-5244 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-5244
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.22803
percentile