CVE-2018-15470
Xen xenstored Unspecified Tuple Evaluation Order Array Indexing Out-of-Bounds Write
Description
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.
INFO
Published Date :
Aug. 17, 2018, 6:29 p.m.
Last Modified :
Nov. 13, 2018, 11:29 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-2018-15470.
| URL | Resource |
|---|---|
| http://xenbits.xen.org/xsa/advisory-272.html | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html | |
| https://security.gentoo.org/glsa/201810-06 | Third Party 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-2018-15470 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-15470 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]
Nov. 13, 2018
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 01, 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://xenbits.xen.org/xsa/advisory-272.html No Types Assigned http://xenbits.xen.org/xsa/advisory-272.html Vendor Advisory Changed Reference Type https://security.gentoo.org/glsa/201810-06 No Types Assigned https://security.gentoo.org/glsa/201810-06 Third Party Advisory Added CWE CWE-400 Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to (including) 4.11.0 -
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]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-15470 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-2018-15470
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.17268
percentile