Executive Summary

Informations
Name CVE-2018-15470 First vendor Publication 2018-08-17
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 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15470

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 154

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-683dfde81a.nasl - Type : ACT_GATHER_INFO
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
2018-09-04 Name : The remote Fedora host is missing a security update.
File : fedora_2018-915602df63.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
GENTOO https://security.gentoo.org/glsa/201810-06
MISC http://xenbits.xen.org/xsa/advisory-272.html
MLIST https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html

Alert History

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Date Informations
2021-09-02 01:29:11
  • Multiple Updates
2021-05-05 01:28:50
  • Multiple Updates
2021-05-04 13:09:08
  • Multiple Updates
2021-04-22 02:22:47
  • Multiple Updates
2021-03-27 01:24:54
  • Multiple Updates
2020-05-23 02:11:50
  • Multiple Updates
2020-05-23 01:08:06
  • Multiple Updates
2018-11-13 17:19:25
  • Multiple Updates
2018-11-01 17:19:33
  • Multiple Updates
2018-10-31 13:21:24
  • Multiple Updates
2018-08-18 00:19:37
  • First insertion