Executive Summary

Informations
Name CVE-2018-7540 First vendor Publication 2018-02-27
Vendor Cve Last vendor Modification 2018-11-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 4 Temporal Score 6.5
Exploitabality Sub Score 2
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7540

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 1
Os 153

Nessus® Vulnerability Scanner

Date Description
2018-11-13 Name : The remote Debian host is missing a security update.
File : debian_DLA-1577.nasl - Type : ACT_GATHER_INFO
2018-10-31 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201810-06.nasl - Type : ACT_GATHER_INFO
2018-04-06 Name : A server virtualization platform installed on the remote host is affected by ...
File : citrix_xenserver_CTX232096.nasl - Type : ACT_GATHER_INFO
2018-04-06 Name : A server virtualization platform installed on the remote host is affected by ...
File : citrix_xenserver_CTX232655.nasl - Type : ACT_GATHER_INFO
2018-03-21 Name : The remote Fedora host is missing a security update.
File : fedora_2018-0746dac335.nasl - Type : ACT_GATHER_INFO
2018-03-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-c553a586c8.nasl - Type : ACT_GATHER_INFO
2018-03-06 Name : The remote Debian host is missing a security update.
File : debian_DLA-1300.nasl - Type : ACT_GATHER_INFO
2018-03-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4131.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/103174
CONFIRM https://support.citrix.com/article/CTX232096
https://support.citrix.com/article/CTX232655
https://xenbits.xen.org/xsa/advisory-252.html
DEBIAN https://www.debian.org/security/2018/dsa-4131
GENTOO https://security.gentoo.org/glsa/201810-06
MLIST https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
SECTRACK http://www.securitytracker.com/id/1040773

Alert History

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Date Informations
2021-09-02 01:32:19
  • Multiple Updates
2021-05-04 13:20:22
  • Multiple Updates
2021-04-22 02:34:41
  • Multiple Updates
2021-03-27 01:27:30
  • Multiple Updates
2020-05-23 02:20:09
  • Multiple Updates
2020-05-23 01:19:14
  • Multiple Updates
2018-11-13 17:19:28
  • Multiple Updates
2018-10-31 13:21:26
  • Multiple Updates
2018-09-07 12:10:54
  • Multiple Updates
2018-09-05 12:07:28
  • Multiple Updates
2018-06-21 12:01:50
  • Multiple Updates
2018-05-13 09:18:53
  • Multiple Updates
2018-04-05 09:19:44
  • Multiple Updates
2018-03-24 09:18:26
  • Multiple Updates
2018-03-23 09:19:17
  • Multiple Updates
2018-03-17 00:19:36
  • Multiple Updates
2018-03-07 09:19:51
  • Multiple Updates
2018-03-06 09:20:00
  • Multiple Updates
2018-02-28 00:19:23
  • First insertion